Find density of an unknown liquid
[PDF File]DETERMINATION OF THE DENSITIES OF A LIQUID AND SOLID
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Chemistry 150 – Module # 1 – Determination of the Densities of a Liquid and Solid Page 3 The Density of Water at Various Temperatures (CRC Handbook of Chemistry and Physics) Temperature in oC Density in g/mL 15.0 0.999099 15.5 0.999023 16.0 0.998943 16.5 0.998860 17.0 0.998774 17.5 0.998686
[PDF File]Density: Accuracy and Precision
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Density: Accuracy and Precision Introduction: Density is a measure of a substance’s mass-to-volume ratio. For liquids and solids, density is usually expressed in units of g/mL or g/cm3; these are equivalent since 1 mL is exactly equal to 1 cm3. Density is an intensive property meaning that a substance’s density will be the same regardless of
[PDF File]SIGNIFICANT FIGURES AND MEASUREMENT OF DENSITY
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Complete the calculations to find the density of the unknown solid object. Show your calculations below. Experiment 1: Significant Figures and Measurement of Density 6 PROCEDURE PART A: Density of a Liquid 1. Clean and dry a 50- or 100-mL graduated cylinder. 2. Weigh the graduated cylinder on the balance provided and record the mass on the data ...
[PDF File]Density and Specific Gravity Dr. E - Weber State University
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The density of water is then used to calculate the exact volume of the pycnometer. After cleaning and drying, an unknown liquid is added to the pycnometer and weighed. The net mass is then used to calculate the density of the unknown liquid: 𝐷 J O𝑖𝑦= 𝜌= I 𝑉, Sℎ N I=𝑎 O O 𝑎 𝑉= R K H Q I
[PDF File]Measuring Density
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density of the samples: _____ Unlike the mass and volume that may be different for each specimen, all objects made of the same material will have the same density. Because of this the density is often used to identify unknown substances or to determine the percent composition.
[PDF File]Experiment #3. Density
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A. Density of an Unknown Metal 1. Obtain an unknown metal sample and record the mass measured with a balance. 2. Find the volume of the cylinder by displacement. Fill a 25 mL graduated cylinder about halfway with water. Carefully read and record the volume to the correct number of significant figures. Angle the graduated cylinder and
[PDF File]Chapter 1 Chemical Foundations 1.8 Density
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Density can be written as an equality. • For a substance with a density of 3.8 g/mL, the equality is 3.8 g = 1 mL • From this equality, two conversion factors can be written for density. Conversion 3.8 g and 1 mL factors 1 mL 3.8 g Density as a Conversion Factor
[PDF File]MEASUREMENT OF DENSITY Introduction
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1) Why is density a physical property useful for identifying an unknown substance? 2) As the density of a given liquid increases, will the hydrometer used to determine it float higher or lower in the liquid? Explain. 3) If a hydrometer touches bottom in a liquid, is its range too high or low for the liquid? Why? 4) a.
[PDF File]Identify Unknown Liquid 1-2-13 LS - MCTCteach
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A student determines that an unknown liquid has a density of 0.78 g/mL, a boiling point of 63.0 ± 0.1 oC, and it is soluble in water and in ethyl alcohol. Use the table on page 4 to identify the most likely candidate for the unknown liquid. What is the second most likely candidate for the unknown liquid?
[PDF File]Experiment 2: DENSITY
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38 EXPERIMENT 2: DENSITY Part III: Density of an Unknown Liquid 1. Obtain a sample of unknown liquid and record the code # of the sample in your lab notebook. 2. If your 10-mL graduated cylinder is wet, dry it thoroughly with a piece of paper towel and record its weight. 3.
[PDF File]Experiment 1 Measurement and Density
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To determine the density of a known liquid (Coca-Cola® variants) using several different glassware and instrument To compare class data and examine the accuracy and precision of each technique To use deductive reasoning to identify an unknown liquid Introduction: Density Matter has mass and volume.
[PDF File]Determining the Density of Liquids & Solids
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find the density of water at this temperature. Calculate the volume of this volumetric flask. Remember significant digits! 5. Dry the volumetric flask. Obtain an unknown liquid and record the identification number. Fill the volumetric flask with the unknown liquid, stopper and record the mass. 6. Calculate the mass of the unknown liquid added.
[PDF File]Density of Liquid Lab Report - Crater High School
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Density of Liquids ABSTRACT: In this experiment, the density of water and an unknown liquid were calculated by finding the mass and volume in three separate trials for each liquid. Very precise results were found and the average density obtained for the water was 1.0g/mL, and the density for the unknown was 0.83g/mL.
[PDF File]Problem 12 - hi
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You have a bucket containing an unknown liquid. You also have a cubeshaped wooden block that you measure to be 8.0 on a side, but you don't know the mass or density of the block. To find the density of the liquid, you perform an experiment. First you place the wooden block in the liquid and measure the height of the top of the floating block ...
[PDF File]Experiment 2a: Measuring Density of a Liquid and a Solid
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9. Record the level of Unknown Liquid in the graduated cylinder. Repeat Steps 3 - 6 with about 30 mL of Unknown Liquid. 10.Liquid B1: Replace the stopper. Use an analytical balance to find and record the mass of the flask and stopper. 11.Fill a 50 mL buret with the Unknown Liquid to at least 40 mL, but less than 50 mL. Do not fill it to ...
[PDF File]Experiment 1 - Density of Liquids and Solids
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Experiment 1 - Density of Liquids and Solids Goal: To accurately determine the density of an unknown liquid and an unknown solid. Density = mass units are: g or g where 1 mL = 1 cm3 volume mL cm3 To properly measure density, we need a container whose volume is known to a high degree of accuracy.
[PDF File]Chemistry 51 Experiment 3 Introduction to Density
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In the metric system the unit of density for a liquid or solid is measured in g/mL or g/cm3. The cm3 volume unit used with solids is numerically equal to mL volume unit used with liquids. That is, 1 mL = 1 cm3. In this experiment you will determine the density of several liquids and compare the physical properties of those liquids.
[PDF File]Determination of the Identity of an unknown liquid
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Determination of the Identity of an unknown liquid My Name The date My period Partner #1 name Partner #2 name Purpose: The purpose of this lab is to determine the identity of an unknown liquid by measuring its density, melting point, boiling point, and solubility in both water and alcohol, and then
[PDF File]Density of a Liquid Mixture
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determine the composition of an unknown mixture. You will learn to use MS Excel to graph data and determine the slope, and understand the difference between accuracy and precision as it applies to experimental data. Introduction When two liquids are mixed, how does the density of the solution compare to the density of the pure liquids?
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