Properties of water lab report

Also, most of the chemical reactions that make life occur in solution. I earned an A in this lab class. Upon completion of this lab you will be able to: Describe several unusual properties of water including surface tension, adhesion, cohesion, solubility, heat capacity. Learning Objectives • To understand the chemical bonds holding the atoms and molecules of water. These various properties—such as freezing and boiling point, cohesion and surface ten-sion—are a product of the high polarity of water molecules. e. 7) Conclusion/implications. Methods Both of the experiments in this lab report were conducted at New Tech High @ Coppell in Mrs. Water is what is known as a polar covalent substance and it can dissolve other polar, covalent substances. Place two or three drops of water next to the drop on the wax paper. EXPERIMENT 10: PROPERTIES OF WATER. D. Included is a table showing observations, proposed chemical equations for reactions, and proposed periodic and group trends in reactivity. 9 ml. Surface tension is a special term we use to describe the cohesion between water molecules. Cut a small piece, about 1 cm by 1 cm, of each sample and put them into a small container of tap water and note which float (F) and which sink (S). Without the soap, the water bonds are really tight and still travel up the paper towel, just not as high or as fast. Learning Objectives. Ester Preparation Lab Introduction: An ester is an organic compound which is created from a reaction between an acid and an alcohol, usually with the loss of water. A chemical change occurs when a different substance forms. The need of more definite quantitative data in regard to the hydro-logic properties of water-bearing materials has long been recognized by geologists and. Join the STEAM Powered Family newsletter to get regular updates and access to free resources. Properties of Water Lab: Water and solutions Background: Water has several unique properties. Without exaggeration, water is the greatest solvent on Earth. Water molecules like to stick together. Learn vocabulary, terms, and more with flashcards, games, and other study tools. STATION 1: (20 pts). Introduction: molecules of water are bonded together by weak hydrogen bonds. Hands on activities: Water experiments 4 4 Procedure • Pour dirty swamp/river/reservoir water into the two litres bottle with a cap. Unit: Chemistry B – Water Properties Science 21 Chem B – Water Properties C11 LESSON 1 - INVESTIGATING THE CHEMICAL PROPERTIES OF WATER . This placed much importance on being very careful and listening to and following instructions thoroughly. CE 321 Sample Laboratory Report Packet This packet contains the following materials to help you prepare your lab reports in CE 321: • An advice table with Dr. Water covers about 70% of Earth’s surface and it makes up 65-75% of our bodies (82% of our blood is water). Place about 250-300 ml of ice in the other 400 ml beaker and enough cold tap water to just cover the ice. 10 Aug 2015 Water. Adhesion is when water sticks to another substance. If most or all of it dissolves, then report sugar as having the chemical property of being soluble in water. separates things into such small pieces that they become a part of the liquid. In particular you will be experimenting with the new concepts of Apr 21, 2017 · In this first lab, we will investigate the properties of water in an attempt to understand how water behaves in relation to both our bodies and the environment. Introduction Water Properties. 5 centimeters wide and also to notice any changes of the crayola Dissolved oxygen is the amount of gaseous oxygen dissolved in water. Stir both the water and the ice-rock salt solution continuously. The report is intended to be graded for thinking, not perfection in the chemical equations as some of these reactions are difficult to characterize. Lab 1 - Density Determinations and Various Methods to Measure Volume Goal and Overview This lab provides an introduction to the concept and applications of density measurements. 4 ml and the partial molal volume of water is 16. 04 Properties of Water Lab Report Be sure to review this important presentation before attempting this assignment (you may Apr 21, 2017 · Properties of Water Introduction: Water’s chemical description is H2O. • To understand the role of water as the universal solvent. Cohesion is the ability of water molecules to stick to themselves (H-bonds). One of the things that makes our planet special is the presence of liquid water. Review of Scientific Principles: Plastics are long chain molecules. www. Freezing point depression could not be used for substances not soluble in water. Teacher Version. Objectives from a generator to a bottle of water inverted through a water-filled trough. LAB: ELEMENTS AND THEIR PROPERTIES Throughout the ages of history, philosophers and scientists have talked about “the elements. Surface Tension Water Experiment – Water Drops On A Penny. engineers engaged in investigations of ground water. Polarity A water molecule is slightly charged on both ends. PRELAB – Complete the following questions before beginning the lab. Lab #4: Solubility of Salts Larissa Guillen and Abigail Delgado Course 1411, Section 520 November 10, 2014 2. Flammability. Jan 08, 2020 · In addition, the way in which water freezes allows for aquatic life to survive throughout the winter. This refers to the ability of water molecules to stick to one another. STATION 1: “Oil and water do not mix. • The Science of Water Lab Activities are set-up as lab stations. • To understand adhesion and cohesion as the forces behind the capillarity of water. Why is water considered to be polar? ho-s 2. For this lab, you should record your answers to the questions on a separate sheet of paper. 1. What is a chemical element? In this lab, you will be given a series of plastic vials containing several common chemical For this lab we use three cups water, and slat, oil, and sugar. Set one in the pie tin and fill it with cool water. Safety Precautions None are needed, since this is a paper and pencil activity. Some of the properties of water displayed in these experiments were cohesion, adhesion, and surface tension. Although a water molecule has an overall neutral charge, the actual structure of a water Describe the cohesive and adhesive properties of water. Add about 3 mL (two full dropper squirts) to each test tube. I calculated the density of each by taking the mass and dividing it by the volume. You must turn-in your work to your instructor before you will be allowed to begin the experiment . The two types of bonds being identified were ionic and covalent. Check their lab reports for accuracy, completeness, and closeness of their  Take a Guess: How many drops of water can fit on one side of a penny? _____. Jun 28, 2011 · The objective of the solubility lab was to test the solubility of succinic acid (C4H604) at three different temperatures. For example, the osolubility of KBr in water at 25 oC is 64 g/100 g water. The stream of water bends due to the polarity of water Oct 28, 2015 · Water Lab - An activity for kids exploring what makes water safe with hands on exploration and discovery. Living things need it every day to survive. Here's a format for a lab report you can Properties of Water Lab: AP Biology Lab 1 Introduction: Water is a simple molecule, yet itʼs most vital to all living things. It's one of the basic elements of life. Extension activities cover additional properties of water that students may want to explore. Some instructors require a lab report to be included in a lab notebook, while others will request a separate report. Repeat with a 10 g sample of your unknown. Mass of water in the graduated cylinder = 6. Two properties of water are the melting and boiling point. In our experiment in Activity 4, we found that water dissolves ionic salts and  28 Jan 2003 Water is a "polar" molecule, meaning that there is an uneven Many other unique properties of water are due to the hydrogen bonds. Organic Chemistry Lab Report #1. For more water property experiments, see this past Lab Report on Testing The Properties Of Water. The oxygen  Cover (or review) the properties of water with your Biology or Chemistry In today's Lab Report, sponsored by Apologia Science, we'll experiment with the  jessica flesch che 113 sec 002 yuting zhang ami patel 25 march, 2017 lab 15: determining properties of water sample introductio: the kentucky river watershed. o De-ionized water Discussion Chemistry is the study of matter. Depending upon the monomers, the plastic will have different physical and chemical properties. Clay for example had a much higher water holding capacity than sand. This cohesion property results in surface tension. Conclusion: This lab was to understand how diffusion and osmosis worked. Since the product is colorless, the bromine is rapidly decolorized when added to an alkene. 2. Abstract This paper talks about several points in a conducted lab experiment known as the “Solubility of Salts”. The freezing point depression equation is the change in freezing point equal to the molal-freezing-point-depression constant times the molality of the solute times the van't Hoff factor of the solute. Procedure 1: The Effect of Salinity on Sea Water Density In this procedure you will mix a water sample with salinity of 10o/ oo. A collection of Science Experiments from Steve Spangler Science | Determine the solubilities of solid compounds in water and in ethanol. o This activity is designed for the students to learn laboratory techniques—both physical and mental. Start this free course now. In this lab you will learn about properties of liquids, specifically cohesion, adhesion, and surface molecules. Sediments are also mostly water. properties. Surface Tension. You may have to push them under at first. The hydrogen atoms are “attached” to one side of the oxygen atom, resulting in a water molecule having a positive charge on the side where … Continue reading "Properties of Water" 1. Stations 1 and 2 - “Oil and water do not mix” As a metaphor, oil and water are often used to explain why relationships between opposites are difficult. The antifreeze solution with only 5 grams of antifreeze lowered the freezing point of the solution from 1*C to -2*C, but the antifreeze solution with 10 grams of antifreeze 3. 0 g/cm3. Part A: The Density of Water; Part B: The Density of Aluminum and the Thickness of Foil; Part C: Graphical Analysis of Mass and Volume Data of an Unknown Solid logic properties of water-bearing materials has long been recognized by geologists and. Sep 30, 2011 · A physical change happens when the substance changes appearance. Cohesion is the attraction of like molecules to one another. If any of the solid or a Whether your water causes illness, stains on plumbing, scaly deposits, or a bad taste, a water analysis identifies the problem and enables you to make knowledgeable decisions about water treatment. Physical properties of matter include qualities or attributes such as density, odor, color, melting point, boiling point, and magnetism. After th Solution A = 1:1 95% ethanol/water, density = 0. What You Do: molecular weight, that water is a liquid at room temperature. Tell them to keep in mind the importance of water in biological systems and to think about what the properties they will be investigating will mean to living systems and how it relates to the quality and protection of our drinking water. Your report for this week should include the following sections: Title page, procedure, and answers to the questions below. 10. Wootton's AP Biology class. Physical and Chemical Properties Introduction Matter can be classified in different ways using physical and chemical properties. Aug 15, 2019 · A student lab report is collected. Soap has unique properties that make it an excellent surfactant (“surface active” compound) or cleaning reagent. EXPERIMENT 10: PROPERTIES OF WATER Pre–Lab Questions: The following preparatory questions should be answered before coming to class. Place a cap on the test tube and shake it to see if sugar is soluble in water. Background- Determining the identity of unknown chemicals is very important and many people do it daily as their profession. Mass of graduated cylinder and water = 5. The addition of pressure will increase the boiling point, and reducing the (Hint: Refer to the properties of ionic and covalent compounds in the prelab) 5. Student teams first measure this property, and then use this measurement to determine the best soap solution for making bubbles. In the first part of this lab experiment water was added to the show more The purpose for this experiment was to combine different chemicals to see if physical or chemical change occurred. Wallace’s hints regarding common strengths and weakness of each section of a lab report • A sample cover memo. the second cup we filled it with oil and the oil didn't mixed with the water, it separated, the water was on the bottom and the oil was on top of the water. Properties of water include its chemical formula H2O, density, melting, boiling point & how one molecule of water has two hydrogen atoms covalently bonded to a one oxygen atom. Lab partner: Experiment 3 Density Part 1: DENSITY OF WATER 1. - 5027151 Introduction. Learn about its physical & chemical properties of water & its importance for the existence of life. Students will investigate the properties of water and develop an understanding of how water behaves in a lake environment. At 100 C, the solubility increases to about 100 g KBr/100 g water. water experiment has demonstrated two important properties of water. This feature is not available right now. Conclusion Throughout this experiment the heat capacity of water was proven to be proportional. The purpose of this lab is to determine the effect of the different substances on the properties of water. The freezing point of water is 0º, but it can be depressed by adding a solvent such as salt in our experiment. co. Pressure, Temperature, and Humidity When a small amount of water were introduced into a vacuum space, some of it would evaporate Water flows from an area of a higher water potential to and area of lower water potential; so if the information of the water potential of the solution in the beaker which the zucchini’s were soaked was given, the information of where the water flows would be known. Write down the number of drops it takes. ) Mark if each sinks or floats. As the diagram to the left shows, that is one atom of oxygen bound to two atoms of hydrogen. We can report the solubility of a chemical at various temperatures. • Place the cap on the bottle and vigorously shake the bottle for 30 seconds. Le Chatelier's principle Lab Report: Properties of Hydrates  According to the Lab Report water quality is the quality of water and if it is considered acceptable drinking water. Measure 50 mL of water using your graduated cylindar and pour it into a 200 mL beaker. In this lab, you will be taking a solution of potassium chlorate and heating it until it dissolves. Physical properties include color, odor, density, hardness, structure, solubility, melting point, and boiling point to name a few. A great STEM and safe drinking water lesson. Dissolved oxygen analysis measured the amount of oxygen dissolved in an aqueous solution. The weak hydrogen bonds between the water molecules will eventually give way. Record all data in your lab notebook and clean up. What difference did you  Observe the different cohesive and adhesive properties of water, oil, and alcohol. Water is fundamental for all life; without it every living thing would die. This experiment is carried out by using Marcet Boiler. Sep 10, 2012 · This Lab Report, sponsored by Apologia Science, explores the properties of water with a simple experiment for you to try at home. Water is everywhere, from huge oceans to invisible water molecules making up water vapor in the air. Properties of Water Lab Glass Slide 23 drops of water Analysis/ Conclusion Introduction The purpose of this experiment was to see/observe how long it would take water to creep up on a strip of filter paper that is 2. Basic science: understanding experiments. 0 ml, but rather 74. Mass of a dry 25-mL graduated cylinder = 3. Shop Carolina's variety of lab equipment including microscopes, glassware,  Do not elaborate on examples of these properties or reasons why they occur at this point. It has the highest specific heat of everyday substances. In order to complete this lab you will need to understand vocabulary and concepts related to the properties of elements, bonding, solutions, as well as the basic principles of circuits. Benzoic acid is soluble in CH 2 Cl 2 until it is deprotonated and becomes highly water soluble, but neither the acid nor the base changes the This lab report meets the requirement for problem solving because in this lab, we had to create our own procedure. MATERIALS: LAB 4: Properties of Water BSC 1007 Introduction to Biology . Sep 30, 2011 · Help me edit this lab conclusion!!!!? The purpose for this experiment was to combine different chemicals to see if physical or chemical change occurred. Water Properties Lab Materials List: Glass of water, paperclip, penny, soda straw, glass slide, glass test tube, a strip of jeans, paper strip with a marker dot, wax paper. cohesive properties of water show us the phenomenon where water molecules are so attracted to each other that they resist the forces around them (i. INTRODUCTION . Report. The Nature of pure water Seawater is composed mostly of water (H2O). Related post: Properties Of Liquids Worksheet. Sign in. The hydrogens of one water molecule are attracted to the oxygen from other water molecules. Many physical properties can be observed using our senses; color, 10 Sep 2012 In today's Lab Report, sponsored by Apologia Science, we'll experiment with the surface tension and cohesion properties of water. Water makes up between 67-70% of our Aug 26, 2019 · The students then are given five lab days to separate and identify (finding physical and chemical properties), and then approx. 2 Procedure 1. Water quality consist of its chemical, physical  25 Jun 2015 Have you ever noticed on a rainy day how water forms droplets on a Extra: Try the experiment with different liquids or other things you can  In this lab, the heat of fusion for water will be determined by monitoring the temperature What do you know about the physical properties of salt water? notes regarding what you do in the lab, so you can write a procedure for your lab report. Unique properties of water enable it to carry out functions that no other substances can. In this laboratory experiment you will be conducting a series of four activities that demonstrate some of the unique properties of water. Part 1: Polarity. Look up the actual density of water: What are the units? 2. 0 ABSTRACT This experiment is to observe the relationship between the pressure and temperature of a saturated steam in equilibrium with water and also to demonstrate the vapour pressure curve. Scientists theorize that this is possible because it is such a small molecule or because there are special gap or pores that allow water movement through the cell membrane. It makes up about 75% of the surface of the Earth. The purpose of the experiment is to determine the dissolved oxygen (DO) level in the lake View Lab Report - 1. pdf), Text File (. The primary focus this week will be on your procedure. Pour the beaker of salty water into the sink. Relative Density. The properties of matter have different points: matter, states of matter, changing states of matter, and density. nz/snow_ida_800. docx from SPANISH 1 0708340 at Florida Virtual School. water mixed with 1 mole ethanol does not result in 58. Add some salt to the water until you have a saturated solution (some solid salt remains undissolved on the bottom. This is observable when a broken circuit connected to a light bulb lights the bulb up when placed in direct contact with the solution. Through a set of experiments, the unique properties of water and its consequent importance to living things will become apparent. Procedure: 1. Sketch a molecule of water (inset{e 'B<îùarges). A good lab report does more than present data; it demonstrates the writer’s comprehension of the concepts behind the data. So understanding the properties of solutions is quite useful. 5 Jun 2019 It is generally possible to remove the water of hydration by heating the hydrate. Properties of Matter Mar 25, 2013 · Physical and Chemical Changes Chemistry Lab Report 839 Words Mar 25, 2013 4 Pages Objectives The main objective of this experiment is to differentiate between a physical change and a chemical change. Once the lab has completed testing your water, you will receive a report that looks similar to Figure 1. Use this engaging inquiry lab to get your kids talking about the properties of water and I listed my water lab conclusion statement directions on the board in the  samples to be returned to a central or regional laboratory within a few hours of central and even regional laboratories for water analysis, at the provincial and The properties and significance of the commonly used faecal indicator bacteria If there are delays in sample transport and analysis—and therefore in report-. 5 wt % water. It is generally possible to remove the water of hydration by heating the hydrate. Identifying unknown substances is an important part of chemistry, with applications in fields such as medicine and environmental chemistry. Lab reports are an essential part of all laboratory courses and usually a significant part of your grade. Dissolves. With that in mind, we can describe the report’s format and basic components. reports. The addition of bromine to cyclohexene gives a racemic trans product. The hydrogen bonding that occurs between molecules in water results in much higher melting and boiling points as well as much lower vapor pressure; this allows the water to exist at temperatures that make life on our planet possible. Their overall purpose is to give the students hands-on opportunities to experience some of the properties of water. To find the density of these unknown factors you take their mass and divide it by the volume and that that equals their density. 7 Nov 2019 is surface tension? See how many drops of water you can put on a coin. On the surface where the water meets the air, water molecules cling even more tightly to each other. 9. Questions. Please try again later. Wet laboratory and WOW data experiments demonstrate the unique properties of water and its importance to lakes and living things. Physical properties are descriptive characteristics of matter. Water’s polarity gives it the ability to dissolve both ionic compounds and other polar molecules, such as sugar. 13 Dec 2015 the properties of water-partnered lab report 2 - Free download as Word Doc (. Richard D. To each test tube add 5 drops of deionized water. Need to report the video? Sign in to report inappropriate content. Murray (9/30/04) Univ. Examples of physical properties include color, density, conductivity, and malleability. Classify the compounds into groups of ionic and covalent compounds. Chpt. 16/17. Aug 10, 2015 · The cohesive properties of the water are holding the molecules together so that they will not spill over the top of the glass. Carbohydrates are compounds that contain carbon, hydrogen and oxygen. Other useful solvents and their properties are listed in the following table. The evidence for reaction when water soluble acetic acid and succinic acid when added to reagent was noted. Most organic compounds, including hydrocarbons, are less dense than water (density is less than 1. In a neutral aqueous solution, five Sep 13, 2013 · Earlier this week, our class did three experiments to test the properties of water. These characteristic groups impart different chemical properties to macromolecules--for example, monosaccharides such as glucose are polar and soluble in water, while lipids are nonpolar and insoluble in water. In the lab that focused on double-replacement reactions, we first made a solution of each compound and then mixed those solutions. 0 g/mL). Features of a Sample Report. Then you will measure its density using a hydrometer. Pre–Lab the beaker. Cohesion is when water sticks to water, and it goes along with surface tension, which is defined as the “tendency of water molecules to attract one another”. Overview: Students learn about the properties of water through a series of demonstrations, a reading and question package, a Water Olympics activity, and a laboratory investigation. Cohesion is the ability of water molecules to stick to themselves (H- bonds). In a neutral aqueous solution, five molecules of water are bonded together by weak hydrogen bonds. Sep 29, 2014 · The purpose of this lab was to investigate the processes of osmosis and diffusion in a model of a membrane system, as well as, investigating the effects of solute concentration on water potential as it relates to living plant tissues. logic properties of water-bearing materials has long been recognized in this report, a study of the subject shows that the refinements of the method are not  Properties of Water Since opposite electrical charges attract, water molecules tend to attract each other, making water kind of Pre-Lab Questions (Click here). 26 Aug 2019 Physical and Chemical Properties of Water. So they float on top of water. 3 days to prepare their report. 94 g/cm3 This lab introduces qualitative analysis, the area of chemistry concerned with the identification of substances by their physical and chemical properties. Biology 3A Lab pH & Buffers Page 5 of 7 Bio 3A Acids and Bases Lab Name:_____ Lab Section & Time: Procedure 1. Bring the liquid to a boil over a flame. 4 Apr 2019 water properties lab report - Free download as PDF File (. Once the temperature of the t-butanol has warmed to about 40 °C, transfer the test tube to the ice-water bath making sure that most of the t-butanol is below the surface of the ice-water bath, add more ice if needed. Indicate on your report form which materials are water soluble. The oxygen end of water has a negative charge and the hydrogen end has a positive charge. Following this, you will use two water samples 20o/ oo and 35 o/ oo provided in the lab. Each student will become familiar with melting point, solubility, pH, fluorescence, and color change. The compound dissociates into Na(+) and Cl(-). Answer the analysis and conclusion. Every substance will have a Jul 26, 2016 · Explore some properties of water with the Amoeba Sisters! It's all about those hydrogen bonds. Academic year. Water will no dissolve covalent substances which are non polar. They are intended to introduce you to several ideas important to aspects of the experiment. Ice is less dense than water because water molecules form crystalline structures at freezing (32 degrees Fahrenheit or 0 degrees Celsius) temperatures. With the increase in importance of quantitative field studies, has come a demand for definite and accurate methods of testing sam­ ples of water-bearing sands and rocks. Properties of Water Lab: AP Biology Lab 1. Helpful? 54 4. 00 g/mL, both the measured mass and measured volume were the same number, with different labels. 1-4. In fact it is about 96. View Lab Report - 104_Lab_Report_. When the mole fraction is 0. Predict how many drops of water will fit on the surface of a penny before May 27, 2016 · Specific Heat Capacity Laboratory Report William Arndt 23rd May 2016 Abstract The specific heat capacity of the two unknown metals were determined by measuring the transfer of heat from the metal to water, through the use of a calorimeter. Volume of water added to graduated cylinder = 4. Because water molecules at the surface of the water puddle attract more to one other than they do to the air molecules above them, they cling together and form a dome shape on the coin. In this experiment we will first calibrate our thermometers using ice and water, the barometric pressure and/or inclusion of other chemical properties such as  Purpose: To observe and experiment with the properties of seawater. Part A: of water. 3) Properties of Water Lab! Download. In this lab you will trace this metaphor back to its source--the nature of oil and water, solutes and solvents, and why some substances do not dissolve in or mix well with others. Make 300 Water has many unique properties. There were, however, large variations in water holding capacity with different types of soil samples. Obtain and label three small test tubes: Solution A, B and C. The Lab Report Assistant is simply a summary of the experiment’s questions, diagrams if needed, and data tables that should be addressed in a formal lab report. Physical Properties of Polymers Objective: The objective of this experiment is to test and compare the physical properties of thermoplastic polymers. Solubility in water: Take a pea-sized amount of each material and test to see if it will dissolve in 5 mL of water. Chemistry: All About You – Module 6. Density is whether an object will sink and the combination of volume and mass. Properties of Water Lab . ANSWERS WILL VARY. Start studying Biology - Properties of Water. A physical change happens when the substance changes appearance. If your instructor gives you an outline for how to write a lab report, use that. txt) or read online for free. This attractive force is what gives water its cohesive properties. Project 1: Inorganic Contaminants Present in Water Sample Lab Report I. This was proved by graphing the change in temperature and  In this experiment you will verify the similarity of family properties by carrying out observe the reaction of a number of elements with water and acid and use your observations on the Lab report sheet under A. o This activity is and then approx. This is because oxygen is more electronegative than hydrogen. These electrolytes in the water then create a conductive solution. In this lab exercise we took advantage of the properties of the materials to move them into and out of various phases by using the acid base properties of the compounds. Our experiment was completed with the use of the beakers,dialysis tubing Lab: Properties of Polar and Nonpolar Substances Purpose: To explain the interactions of matter in relation to polarity. Physical properties are those than can be studied without attempting to change the substance into Surface tension is one of the most important properties of water. Surface Tension Experiment #8 Properties of Alcohols and Phenols Page 8 4. Students learn about the role that thermal insulation materials can play in reducing heat transfer by conduction, convection and radiation, as well as the design and implementation of insulating materials in construction and engineering. These will be recorded in your lab notebook as part of general lab data. • To understand the properties behind waters temperature stabilizing role. Sodium and potassium, for example, react with water, but aluminum and gold do not. Acidity – Place 5 drops of each sample into the appropriate clean, but not necessarily dry, test tube. Conclusion - After all the groups have completed the experiment, I have one person from each group write their water its cohesive properties. Pre-laboratory Assignment: The Density of Solids and Liquids; Lab Report: The Density of Liquids and Solids. I met the objectives of the lab because I was able to determine the density of water, a rubber stopper and ethanol. When would it be appropriate to use a burette for measuring volume? 2. INTRODUCTION: A. Furthermore, due to LABORATORY TESTS ON PHYSICAL PROPERTIES OP WATER-BEARING MATERIALS. Water Lab. In this lab, you will: (1) synthesis soap, and (ii) study the physical There are two properties at work in this experiment: cohesion and surface tension. You notice that salt was added to the water before boiling and you wonder why they did this. 3. http://snow. Properties of Alcohols and Phenols Experiment #3 Objectives: To observe the solubility of alcohols relative to their chemical structure, to perform chemical tests to distinguish primary, secondary and tertiary alcohols, and a color test for phenol. Of course you can see and feel the physical properties of water, but there are also many chemical, electrical, and atomic-scale properties of water that affect all life and substances on Earth. properties of water. Draw and label the diagram of water on the right. However, it has a tendency to form emulsions, which can make it difficult to separate the layers cleanly. Washington I. Students extend their understanding of surface tension by exploring the real-world engineering problem of deciding what makes a "good" soap bubble. Properties of Hydrates. Lab 5-1B: Properties of Acids and Bases (/2) Purpose: Summarize in 1-2 sentences what you hope to explore or find out in this lab, based on the pre-lab material provided. Place one piece of each plastic into each of the three test tubes. 1 Experiment 4 Lab Report -PROPERTIES OF ALCOHOLS AND PHENOLS Date Name Station # Section Partner DATA SHEET Table 1. After the liquid has been boiling for approximately 1-2 minutes, measure the temperature of the boiling liquid. 5, the partial molal volume of ethanol is 57. What we hope to explore in this lab is to find if and what happens to the pH indicators if we add A, B, C and D solutions to them. Rinse it and dry it (and dry the lab table), and fill the beaker with the same volume of water as there is oil in the beaker. • An annotated sample lab report prepared on a fluids experiment Aug 22, 2014 · The main properties of water are its polarity, cohesion, adhesion, surface tension, high specific heat, and evaporative cooling. Teaching Notes and Tips This activity can take a variety of paths to get to the end, as long as it connects all of the dots (physical and chemical properties). 0 ml, or 76. The melting point of water is 32°F (0°C), and the boiling point is 212° F (100°C) at atmospheric pressure. Physical and Chemical Properties of Matter Lab Purpose To introduce the student to physical and chemical properties of matter and their use for the identification and separation of compounds. Write a conclusion  The Science of Water Lab Activities are set-up as lab stations. It is the reason that water collects in drops, but it’s also why plant stems can “drink water,” and cells can receive water through the smallest blood vessels. Properties of Water Lab: Cohesion and Surface Tension. In the first part of this lab experiment water was added One of the properties of water is surface tension, or cohesion. The densities of brass and aluminum will be calculated from mass and volume measurements. Pass out the handout “Water Lab”. 94 g/cm3. Colligative Properties & Osmotic Pressure Peter Jeschofnig, Ph. Most fine grained surface sediments have a porosity temperature-humidity processes. Instructions: 1- Using the eye-dropper; count the number of drops of water that fit on to the face of the penny. STATION 1: (20 pts) Property: Cohesion / Surface Tension . Le Chatelier’s principle predicts that an addition of heat to an endothermic reaction (heat is a “reactant”) will shift the reaction to the right (product side). and denser than water. Cohesion is when water sticks to water, and it goes along with surface tension, which is defined as… accounts for water’s unique properties based on the quantum mechanical model of the atom, the shape of the water molecule and the distribution of charge. Teacher Notes. . This decolorization of bromine water is often used as a test for a carbon-carbon double bond. Water's hydrogen bonds are also why its solid form, ice, can float on its liquid form. Check out video of a stream of water being bent - a plastic ruler is used in the demo. 0 ml + 18. In this case, the like molecules are the H20 molecules in the water drops. Until recently the classic *Clean up—the oil and salts as you found it. glencoe. Properties of Water . It's a colligative property of matter. They experiment with additives to their best soap and water "recipes" to increase the strength or longevity of the oil spills in the North Atlantic. CARBOHYDRATE CHEMISTRY. Development: (40 minutes) i. According to the information from the antifreeze lab, one can assume that increased concentration of antifreeze in the solution would further lower the freezing point. Lab #1 Measurement of Physical Properties Introduction Just as people can be identified by their appearance and their behavior, substances are described and identified by their physical (appearance) and chemical (behavior) properties. Surface tension is a property of water created by cohesion that enables a drop of water to keep its shape. Apr 16, 2015 · Chem Lab Report (1) 1. Water molecules attract each other and tend to stick together. Properties of Water Lab: AP Biology Lab 1 Introduction: Water is a simple molecule, yet itʼs most vital to all living things. Various grades of petroleum ether (a mixture of low boiling hydrocarbons) can be used in place of pentane. The purpose of this lab is to familiarize the students with common psychrometric properties of air and the instruments used to measure these properties. The reactions were immediate. Introduction: Water is all around you - an incredibly important molecule in biology! It’s in the air that you breathe and in the majority of liquids that you drink. So that all answers in the. You can observe either a solid. You will also Synthesis of Esters Lab Report the different properties of the different Shake the tube again and place it in a beaker of boiling water for three minutes. You can test multiple surface tension experiments using just a few household items. Version 42-0149-00-01 Lab Report Assistant This document is not meant to be a substitute for a formal laboratory report. Because water is polar, having a negative oxygen end and a positive hydrogen end, water molecules are very cohesive. According to my lab results, all the ionic chemicals had the same chemical properties as the unknown chemical; therefore the unknown must be ionic. Which substances are polar, covalent compounds? (Hint: Which substances are soluable in water) 6. They are also attracted to other charged molecules. when drops of water are added to a penny. Because of cohesion, water and other liquids form thin films and drops. Heat Capacity By Jamu Alford With help from Sari Belzycki Abstract Using a Styrofoam cup as a calorimeter the specific heat of water was found to Jan 02, 2019 · Chemistry Lab Resources (for CHM 1XX and 2XX Labs): Parts of a lab report Here you can find tips about organizing your lab notebook, how to effectively create graphs and table for lab reports, places to locate protocols and property information, and how to properly cite resources. water solution, table salt is the solute, the substance that is dissolved. Continue the aeration process by pouring the water into another bottle or the beaker, then Every kind of matter, such as wood, steel, or water, has a unique set of physical and chemical properties. 04 Properties of Water Lab Report Name: Moises Polanco Date: 9/9/19 Title: The Saltier the Water, the Slower Mar 14, 2016 · 2016 water lab. Click on this link to access the National Science Foundation’s “A Special Report: The Chemistry of Water” where you can click through a series of links to get more in-depth information on water 1. the water will rise above the rim of the glass before it spills (just like the initial experiment). In our experiment we're going to add some sugar to 5 different test tubes (0,5/1/1,5/2/2,5 grams per test tube) and we will put them up in a salt ice mixture d beaker. Our main concern at the beginning of the lab was working with this slightly toxic acid. Capillary action takes a big part in this lab because with out it, the water would not be able to rise naturally without an external force acting on it. This table is typical In today’s Lab Report, sponsored by Apologia Science, we’ll experiment with the surface tension and cohesion properties of water. If water were not able to get through, then plant seeds would never receive proper nutrients, and growth would be nearly impossible since the water could not get to the growing plant. In the interest of time, this lesson focuses on the solubility, stability, and abundance of liquids, rather than delving into all the properties that make liquid water an essential substance for life on Earth. Report for plastic samples in each liquid: sinks rapidly, sinks slowly, floats on top, floats below surface Plastic number 1:1 ethanol/water density = 0. The thermal properties of water are also linked to its hydrogen bonds. Make sure you properties and apply them to the concept of capillary action. 08 g/cm3. Materials • Water is Weird! Data Table • Lab worksheet for recording trends Procedures Data table 1 shows the physical properties of a variety of substances. Check out the water properties section on the United States Geological Survey (USGS) website to find out more about what makes water so special. 4. We were given the challenge of finding which mixture of different soil types was best for growing alfalfa in. Litmus pH indicator What can you conclude about the pH tap water here Saddleback College? As you add acid, describe the color change. 5. ii. If you get any on yourself wash the affected area with lots of water immediately! Phenol is extremely corrosive. Water molecules are attracted to each other (cohesion). explain these different properties called the particle model. Pre-Lab Questions: Use the above background information and other available resources to answer the following questions. This is also the reason that “water striders” can walk on the top of the water without falling through. Based on the results of this lab, write a short paragraph that summarizes how to distinguish physical changes from chemical changes. When would it be appropriate to use a pipette for measuring volume? 3. High-specific heat is the amount of energy that is absorbed or lost by one gram of a substance to change the temperature by 1 degree celsius. That speeds up the reaction between the chemicals. Sep 13, 2013 · Earlier this week, our class did three experiments to test the properties of water. Introduction The general formula of an alcohol is ROH in which the R is an aliphatic hydrocarbon This lab contains several mass and volume measurements and to use these measurements to determine the density of water, an unknown liquid and an unknown solid. Transcript; Add Lab partner: Experiment 3 Density Part 1: DENSITY OF WATER 1. ” We all know that. docx), PDF File (. Observe the other groups results for the water holding capacity. Water is the solvent – the substance in which the solute dissolves. Adhesion Properties of Water. properties describe how a substance interacts with other matter. The characteristic of soil most important in determining water holding capacity is permeability because permeability determines how quickly water and air flow through a The unknown is ionic because its state at RT is solid, it is soluble in water, it is colourless and has conductivity in water. You will also determine a theoretical density using Figure 1. The ability of water to go through the soil definitely aids in the growth of plants. gravity) ex. Lab 15. In doing so, the chemist would certainly list physical properties. Be sure to bring Check Homework: (1) Water Online Activity (2) Late-Chemistry of Life Reading and Questions (4. Directions: Please record all of your answers regarding the properties of water lab on this lab report sheet. 04 Biology Lab Report from SCIENCE 3803 at FLVS. Three drops of the liquid or one micro spatula of the solid acid were added with 2 mL of 10% sodium bicarbonate solution. com Start studying Intro Chem Lab Experiment 5 Physical & Chemical Properties. Since the theoretical density of water is 1. In the demonstration, you saw food coloring move in hot and cold water. Physical and Chemical Properties Lab (10% of grade based on professionality and neatness of report) Purpose: To describe the physical and chemical properties of matter based on the Properties of Water Lab. Lab 5: Properties of Water: Cohesion and Surface Tension (Leaf Lab) Water can moderate temperature because of the two properties: high-specific heat and the high heat of vaporization. 3! According to Equation 7, it is the partial molal volumes that are additive or extensive properties. Jul 19, 2011 · Cyclohexane is completely insoluble in water. Solution B = distilled water, density = 1. Carbohydrates are essential in foods as an energy source (starch is the main source of human calories), a flavouring (simple sugars are usually sweet) and as a functional ingredient (sucrose allows ice cream to be soft in the freezer; xanthan gum thickens a low-fat salad dressing). Determine the conductivity of water solutions of the soluble solids. 3: Properties of Water and Seawater James W. Obtain a pipette and a small (10 ml) graduated cylinder. Sep 24, 2016 · Properties of Water Discussion Questions September 24, 2016 September 29, 2016 carlinm1617 The data from the penny dropping experiment leads one to assert that water has the greatest intermolecular bond. Property: Cohesion / Surface Tension. By Rookie Check out these other experiments on water properties. Solution C = 10% NaCl, density = 1. Solution Conductivity Part 1: Pre-Lab Introduction: In this lab you will test the conductivity of different solutions. ” Reference to elements is most frequent today in the field of chemistry. Drops On A Penny Lab Cohesion Water molecules are attracted to other water molecules. Lab Report Ionic and Covalent Bonds Lab: Ionic and Covalent Bonds Introduction: The purpose of this experiment was to explore the properties of chemical substances that can be used to identify the types of bonds in a chemical substance using a laboratory procedure. Your parents tell you that adding salt to the water adds flavor to Experiment #8 Properties of Alcohols and Phenols Page 6 most any color yellow + FeCl 3 OFe+ Cl Cl R OH R N NH Cl-Caution! Chromic acid is very corrosive. doc / . Here are three  7 Nov 2019 In this experiment, you will find out that water doesn't just flow in river. University of South Florida > Organic Chemistry Laboratory SAMPLE LAB REPORT You watch your mother or father cooking spaghetti by boiling pasta in water. What is the current pH of the solution? will dissolve, and in greater quantity. Their overall As a result of water's bent shape and polarity, water has unique properties, such as an ability to 1. We are able to conclude that there is in fact sucrose present and that plant cells can be affected by water. Summarize the properties of ionic and covalent substance. As a metaphor, it is often used to explain why relationships between opposites are difficult. jpg. Properties of Water Lab Equipment: Lab worksheet Pencil/pen Penny Eye dropper Water Objective: Find out how many drops of water can fit on the face of a penny. Water is everywhere. Most hydrocarbons will burn over a flame- the hydrocarbon reacts with oxygen to produce carbon dioxide and water. In particular you will the data table. It seems that water is everywhere and in all facets of life. It is very common for a chemist to need to describe a bit of matter as thoroughly as possible. Chemical properties are determined by the SOLUBILITY IN WATER: Add a small amount of sugar to an empty test tube and fill the test tube about half full with purified water. These properties are often useful for identifying different types of substances. Browse the latest lab supplies and equipment for all your science lab essentials. b. Which type of bonds form between the oxygen and hydrogen atoms of TWO DIFFERENT water molecules? 4. Essay about Water Lab Report - Water is a charged or polar molecule (H+ - O- - H+) that is always moving across cell membranes. Re-set the station as you found it (beakers, stir rods, salt, etc…). Then we fill up all three cups with water and then we filled one cup with salt and the salt became dense. Our hypothesis was that if a solute has a has a high concentration, it will gain more water than if the solute had a lower concentration. Just create an account and sign in. Matter can be in different forms (solid, liquid, gas, plasma, Bose-Einstein condensate), shapes or forms, and physical properties. In this lab you Students test the insulation properties of different materials by timing how long it takes ice cubes to melt in the presence of various insulating materials. Properties of Water Lab. Procedure Part 3 : Solvency Materials Discussion Question 1 Given that hydrogen and oxygen would have equal electronegativity, the result would be a loss in attraction between the molecules (meaning that hydrogen bonds can no longer be created) due to water losing its polarity. Comparing the Solubility of Alcohols in Water Soluble in water? Yes or No Tube Alcohol Observations ethanol 2 2-propanol 3 2-methyl-2-propanol 4 cyclohexanol 5 1,2-ethanediol 6 1,2,3-propanetriol Table 2. Knowing the pieces and purpose, you can adapt to the particular needs of a course or professor. By NORAH DOWELL STEARNS . EXERCISE 4 Properties of Water OBJECTIVES During this lab, the students will: Analyze the various properties of water, including surface tension, adhesion, cohesion, high heat of vaporization, density, and solubility Compare some of the physical properties of water and ethanol caused by hydrogen bonding. By performing a variety of tests, scientists can distinguish the identity of an unknown substance. Enrol and complete the course for a free statement of  logic properties of water-bearing materials has long been recognized in this report, a study of the subject shows that the refinements of the method are not  Experiment #9: The Preparation and Properties of Oxygen. The typical pKa values of carboxylic acids, phenols, HCO 3– and CO 32- were compared. properties of water lab report

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