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1. A dense plastic-like shape has a mass of 42.985 g and has a volume of 41.96 mL. What is the density of the substance?

1. A dense plastic-like shape has a mass of 42.985 g and has a volume of 41.96 mL. What is the density of the substance?

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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1. A dense plastic-like shape has a mass of 42.985 g and has a volume of 41.96 mL. What is the density of the substance? 2. Another plastic-like piece has a mass of 65.389 grams and displaces 53.652 grams of water (measured at 24.6 °C). Is this piece likely to be composed of the same material as the sample in problem 1? Explain using the Claim-Evidence-Reasoning process. 3. Here are two possible methods for measuring the volume of an irregular shaped object. a) Add it to a graduated cylinder containing a known volume of water. Measure the change in the volume of the water after the object has been added. The graduated cylinder is graduated in 1 mL increments. b) Add the object to vessel that is full of water. Collect and measure the mass of the water that is displaced on a digital balance that provides mass to the 0.001 g. Determine the volume by comparing to the density of water table given in table 1.1. Which method would be more likely to produce a more precise measure of the volume of an object?
Transcribed Image Text:1. A dense plastic-like shape has a mass of 42.985 g and has a volume of 41.96 mL. What is the density of the substance? 2. Another plastic-like piece has a mass of 65.389 grams and displaces 53.652 grams of water (measured at 24.6 °C). Is this piece likely to be composed of the same material as the sample in problem 1? Explain using the Claim-Evidence-Reasoning process. 3. Here are two possible methods for measuring the volume of an irregular shaped object. a) Add it to a graduated cylinder containing a known volume of water. Measure the change in the volume of the water after the object has been added. The graduated cylinder is graduated in 1 mL increments. b) Add the object to vessel that is full of water. Collect and measure the mass of the water that is displaced on a digital balance that provides mass to the 0.001 g. Determine the volume by comparing to the density of water table given in table 1.1. Which method would be more likely to produce a more precise measure of the volume of an object?
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