Chemistry lab report determining the density of water

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To determine if density is an intensive or extensive property of matter. (5) dropper pipet. In order to find the density of an object  This unit is awkwardly large for most chemical applications. physical property can be measured without changing the chemical identity of the substance. - familiarize themselves with common  Put distilled water into the cylinder to the 50 ml mark. 29 Dec 2009 In addition, the investigation gives you practice in. For Part C (Density of distilled water) note that the mass and volume readings should be cumulative after each additional amount of water is  A. 1. Read the level of the water to the nearest 1 ml. Density is calculated using the formula:. Experiment 1: Density. Before getting started, fill a 400 mL beaker with deionized (di) water from the center tap in the sinks. 4. CHEM 1151L. To do so, we had to collect some data. Note that most of it is simply copying but any long parenthetical comment should not be And this is what your lab notebook should look like: Section 1 — By calculating the density of a known substance (water), determine the relative . Common units are The temperature tells how warm or cold an object is relative to a standard. Determine the density of regularly-shaped objects 3. OPTION 2: The solid  Experiment: Record all data on the Report Sheet. The molecules of different liquids have different size and mass. doc / . (mL). CAUTION!!! BE SURE TO WEAR SAFETY GLASSES AT ALL. Water density:………. Determination of Density. 2) If more dense materials are dissolved in the water, the solution density will increase. TIMES IN THE LABORATORY. We used the balances to determine the mass of each object. Because the density of a substance does  Knowledge in chemistry, as in all the physical sciences, is obtained initially from performing experiments in a laboratory. The ratio of the mass of a substance to its volume is known as the mass density or, simply, the density of the substance. The volume of an irregularly shaped object can be determined by measuring the amount of water it displaces. Put the solid inside the water, read the new level of the water then determine the volume of the solid by subtracting the level before and after. Place the graduated  Chemistry 1A. Identify and use the following volumetric glassware: graduated cylinder, buret and pipet. Determine the density of distilled or deionized water. Key Concepts. (2) Water, with a density of 1. Determine the density of irregularly-shaped objects 4. doc 222 from 160 16 at Rutgers. (2) 50 ml graduated cylinder. Density is defined as being equal to an object's mass divided by its volume. Objectives: • To determine the density of a known liquid (water). (3) use the calibrated flask to determine the density of an aqueous solution of salt, NaCl. pdf), Text File (. In this experiment, we  The densities of brass and aluminum will be calculated from mass and volume measurements. We also had to determine the percent error of our findings. NO EXCEPTIONS TO THIS RULE! This experiment is designed for students to. PROCEDURE: Mass a clean, dry 100 ml beaker. Learn about intensive and extensive properties 2. Unknown Solid Sample a chemical reaction. The volume of a liquid can be measured directly with a graduated cylinder. If you ever own a salt water aquarium, you can check the salt level (salinity) by doing a density measurement. The task for our lab was to determine the density of water and compare our recordings to the actual  Key Concepts. Chem 142. Recording a mass  SURVEY OF CHEMISTRY LABORATORY I. Measurements will be performed on three . Instructor: Tony Zable. (6) tap water. 092309. We will rely on the fact that the density of water has been measured countless times and every possible temperature. MATERIALS & EQUIPMENT: (1) 10 ml graduated cylinder. SURVEY OF CHEMISTRY LABORATORY I. Experiment: Initial Investigations into Measurements and Density. It is desirable to keep this uncertainty as small as An analytical balance and a list of densities of water at given temperatures will allow you to determine the volume to four significant digits. 2. Osmium  Density has the units of mass divided by volume such as grams per centimeters cube (g/cm3) or kilograms per liter (kg/l). • To determine the density of a regular solid and an irregular solid. 9/23/09 Density of Solids & Liquids Objective: - to determine the density of water to determine the density of. Record the ID Code of the unknown solid on your report form. Water displacement for irregularly shaped solids. Remember: density = mass / volume. Nord and Robert C. To learn laboratory measurement techniques to take measurements correctly. Source: Laboratory of Dr. Note that most of it is simply copying but any long parenthetical comment should not be And this is what your lab notebook should look like: Section 1 — By calculating the density of a known substance (water), determine the relative. CSUS Department of Chemistry. UW Department of Chemistry. Activity 1: (Determine the density of an object with a regular shape. That is to say, we know the density of water and can use its value, and the mass of water to determine the volume of any container. 10 mL graduated cylinder,  To determine the density of solid that is denser than water, using a spring balance and a measuring cylinder. Each set of the procedure was executed with two trials. Hypothesis: -Predict which metal will be more dense and identify a metal based on its density. 00 g/ mL, was used as the standard for determining densities. DETERMINATION OF THE DENSITY OF WATER. A. Ch100: Fundamentals for Chemistry. Graduated (or) Measuring cylinder. Overview. LEARNING OBJECTIVES: By the end of this experiment, the student should be able to demonstrate proficiencies in the following areas: 1. calculating its volume or by determining the volume by water displacement. The composition of a mixed brass-aluminum cylinder  In the density lab we had four main objectives to complete, they were: 1. *-. Physical properties are the properties that do not change the chemical identity or nature of matter The known density of water at different temperature can be obtained from a reference book. We are especially interested in receiving your application reports, which we would  Skyline College Chemistry 210 Laboratory Manual (August 2013 Revision). To illustrate the effects of precision on data, volumes will be determined by three different methods: geometrically (measuring lengths); water displacement; and pycnometry. Experiment 1. 8. By careful work, students can determine the density to within 0. Whenever a measurement is made in the chemistry laboratory, some uncertainty exists. (3) 100 ml beaker. MEASUREMENT OF DENSITY – EXPERIMENTAL DENSITY. Equipment and Materials. We also had to measure the volume of each  View Lab Report - chemistry lab-report, density. Chemistry 511. docx), PDF File (. Rittenhouse, Eastern Michigan University. It is also determining if density is a constant and whether mass and volume are directly or inversely proportional. This procedure will be repeated to give some   Ch100: Fundamentals for Chemistry. 18-19. Note: You are required to hand in your written report on a separate sheet of paper. Measure out 10 ml of tap water in a graduated cylinder and carefully pour  1 Aug 2008 Measuring the Density of a Sugar Solution: A General Chemistry Experiment Using a Student-Prepared Unknown Densities are measured with simple glassware that has been calibrated using the density of water. Physical Measurements and Error Analysis In this experiment you will determine the density of a liquid and a solid by procedures involving than that of water to values considerably greater than that of water. Just like solids, liquids also have their own characteristic density. density of  Chemistry 161. Determine the density of regularly- shaped objects 3. Density is defined as being equal to an object's mass divided by its volume. Prepared by Ross S. Allow this to come to room temperature, measure the temperature with your thermometer, Use this temperature to find the density of water on the chart  Measuring the di- mensions of a solid. Based on the results of the first and second part of the procedure the unknown solid was Zinc and the  Purpose. 5%. You can  Reading assignment: Chang, Chemistry 10th edition, pp. • Measurement of water density by hydrometer. Lab Lectures Online. Purpose: To find the densities of two different metals. Calibration of the Pychnometer. In order to find its volume we needed to  28 Feb 2013 - 3 min - Uploaded by Mark DrollingerAs a practicing marine cargo surveyor, I often measure water density to determine the All laboratory work involves some form of measurement- volume, mass, common instruments used in General Chemistry can be divided into two types: . The mass and size of the molecules in a liquid and how closely they are packed together determine the  Experiment 1. Density is the ratio of the mass of a substance to its volume. Therefore, grams per cubic centimeter (g/cm^3) and its equivalent, grams per milliliter (g/mL), are more commonly used for solid and liquid densities. Liquids are measured in glassware. To determine the density of solid that is denser than water, using a spring balance and a measuring cylinder. Any pure substance has a specific density at a specific temperature. . Chemistry conclusion for the Density of Water Lab. 7. Empty beaker:…………(g). (e. Name(s Bill Wagenborg and Richard Matthews. This procedure will be repeated to give some  Lab Report: Experiment #2 Determination of accuracy of volume markings on glassware. You will be determining the density of three different liquids: Room temperature water; 20% salt water; Isopropyl alcohol. In chemistry, mass is measured in grams and length in centimeters. You will learn Report the density and calculate your experimental error. To investigate the error associated with the measurements of volume in the chemistry lab Remove the beaker from the balance and place the water in the beaker. You will then  In this experiment you will be determining whether a sample of matter is an example of an element, a compound, a hom ogeneous mixture, or a heterogeneous mixture on the basis of its appearance. Methods of salinity determination: • Evaporation of seawater. Mar 5, 2009 We used a 25 ml density bottle and electronic scales to find the mass and the volume (25 cm3 !) of some coca cola. Mass and linear measurements are basic units in the metric system. Density is expressed in units of mass per volume, such as g/mL or kg/m3. the density of water. "lives" and grows with use. Nov 19, 2008 PURPOSE: The purpose of this experiment is to find the density of distilled water, the density of a sample of wood, the density of a rock sample and discover how density determines whether an object Measure the length, width and height of the wood block and record the dimensions in your data table. The balance will remember the mass of the container until it is tared  The objective of the density lab was to calculate the density of water, a rubber stopper and an unknown liquid (ethanol). Measured volume. We will see this effect in today's lab when we measure the effect of dissolving sucrose on the density of water. 5 Mar 2009 - 2 min - Uploaded by c4scienceWe used a 25 ml density bottle and electronic scales to find the mass and the volume (25 cm3 This lab teaches skills in measuring the density of a liquid, and the liquids used are solutions of salt (NaCl). Experiment: Density. Materials Determine the density of water, at the temperature measured in 6 above, from the tables given. Please have Parts 1 to 4 ready before class on Tuesday, January 21. Mass of beaker and water. I. In the density lab we had four main objectives to complete, they were: 1. Chemistry 161. Fill a 25 mL graduated cylinder about half-way with water. making accurate measurements of volume and masses, and; construction and use of graphs involving experimental results. • To distinguish between accuracy and precision. We will determine the density of water and of an unknown metal. Volume  lab 6 Experiments: techniques. g. PURPOSE. Learn the relative If there is a danger of spilling on the balance, remove the container before adding the chemical. In conducting this experiment, you will make several mass and volume measurements and use these measurements to determine the density of water, glycerin, and an unknown metal. Which is heavier, a The density of water can be found in the CRC Handbook of Physics and Chemistry. txt) or read online. B. 00 g/mL, was used as the standard for determining densities. , with a ruler). OBJECTIVE: to investigate the density of water. Density is defined as the mass of a substance per unit volume. In order to find the density of an object  This unit is awkwardly large for most chemical applications. Density of Water Lab Conclusion - Download as Word Doc (. (4) balance. 13 Feb 2016 One way is to measure its density at a given temperature. Determination of the Density of Water and an. This lab also stresses techniques to get the most accurate measurement of density for a liquid. MATERIALS & EQUIPMENT: (1 ) 10 ml graduated cylinder. Lab Report – Submit electronically (digital drop box) by We measure the mass first because it needs to be completely dry and not affected by the water. No. In the lab we report temperature on the Celsius (°C) or Kelvin (K) scales. 1 of 9. In this experiment, we  Density has the units of mass divided by volume such as grams per centimeters cube (g/cm3) or kilograms per liter (kg/l). It is in the laboratory that facts are discovered and concepts, ideas and theories are tested. Measure out 10 ml of tap water in a graduated cylinder and carefully pour   Whenever a measurement is made in the chemistry laboratory, some uncertainty exists. • Refraction of light  In fact, most chemical principles cannot be fully understood without obtaining and analyzing some quantitative data. Michael Evans — Georgia Institute of Technology. In Part B, the density of pure water and an unknown object will be determined in grams per milliliters (g/mL). The task for our lab was to determine the density of water and compare our recordings to the actual  In Part A, a graduated cylinder, volumetric pipette, a beaker, and a burette will be used to measure liquid volume in milliliters (mL). In this course, an attempt will be made to correlate the classroom and the laboratory work. The composition of a mixed brass-aluminum cylinder  In this experiment you will determine the density of several liquids and compare the physical properties of those liquids. Accuracy of volume markings on glassware. Density. • To identify an unknown liquid by determining its density. In this experiment, you will: (1) use controlled temperature water baths (thermostats) to obtain a uniform constant reproducible temperature for the samples;. In this experiment we investigate the precision and accuracy of such a pipette by making accurate determinations of the mass of water it delivers in repeated operations. ) Obtain a set of . Contributions from users both in the laboratory and in industry will help ensure that this manual. 1st year Chemistry Experiments. We will also learn to use the triple-beam balance. This allows accuracy to  This experiment consists of three parts: measuring the density of an irregularly shaped solid, measuring the density of a unknown liquid sample, and making Report Page 13. The purpose of this experiment is to become familiar with the concept of density. When recording your data on the lab reports and lab notebooks, always include the units with the measured numbers. To this end, you will  possibilities that these weighing applications open up, so they can begin to create custom solutions where needed. • Conductivity of seawater. (g). Purpose. Goals. - familiarize themselves with common  Feb 13, 2016 One way is to measure its density at a given temperature. Thus, we measure the mass of the dry. Lab 1: Measurements and Error. 19 Nov 2008 PURPOSE: The purpose of this experiment is to find the density of distilled water, the density of a sample of wood, the density of a rock sample and discover how density determines whether an object Measure the length, width and height of the wood block and record the dimensions in your data table. Water temperature:………. In this lab we found  For water, density increases as temperature decreases. See Table 1 for the density of water at different temperatures. Abstract : The density of an unknown solid and an unknown liquid was determined, along with the comparative densities of water, Toluene, and Methylene chloride. Care in your technique should produce repeatable results, but do not expect that each technique will produce exactly the same numbers. In this lab, you will compare the accuracy and precision of densities of solids measured by two different techniques: volume displacement and volume calculation using calipers. g/mL. This lab hand–out may be attached if you do not  OBJECTIVES. The mass and size of the molecules in a liquid and how closely they are packed together determine the   The densities of brass and aluminum will be calculated from mass and volume measurements. In Part A of this lab, the mass and volume of distilled water will be measured in order to determine the density of water. Calculate the density. tools, in this experiment, you will measure the density of water. Lab techniques: Graduated Cylinder and Pipette usage: Perform statistical analysis to determine the density from the graph and to. Procedure: 1. 2 Jul 2014 glassware; (2) to determine the densities of different aqueous solutions. (2) calibrate a volumetric flask to ascertain its exact volume;