Student Solutions Manual for Zumdahl/Zumdahl/DeCoste?s Chemistry, 10th Edition
10th Edition
ISBN: 9781305957510
Author: ZUMDAHL, Steven S.; Zumdahl, Susan A.; DeCoste, Donald J.
Publisher: Cengage Learning
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Textbook Question
Chapter 1, Problem 37E
You have liquid in each graduated cylinder shown:
You then add both samples to a beaker. How would you write the number describing the total volume? What limits the precision of this number?
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Students have asked these similar questions
If a sample of gold alloy has a mass of 87.7 g and is 78.3% gold by mass, what percentage of the alloy is made up of other metals? Write your answer to the nearest tenth of a percent.
(I had to alter the wording of this question since it wasn't calculating significant figures properly, so if you got it wrong because of significant figures you can assume you probably actually got it correct.)
1. A 25 mL flask is known to hold a total volume of 27.64 mL when completely filled. The empty flask has a mass of 45.897 grams. The student was to determine the density of an irregularly shaped solid. He added the solid to the flask and determined that the mass of the flask and the solid was 156.11 grams. He then filled the remaining volume of the flask with water and determined that the mass of the flask, water and solid was 171.89 grams. The density of the water was 0.9970 g/mL. Using this information answer the following questions: a) What was the mass of the solid? b) What was the mass of the water? c) What was the volume of water? d) What was the volume of the solid? e) What was the density of the solid?
Red gold is a gold-copper alloy used to make jewelry. A piece of jewelry made of red gold weighs 7.05 g and has a volume
of 0.504 cm. Gold has a density of 19.3 g/cm' and copper has a density of 8.96 g/cm³. Calculate the percentage by mass of
each metal in the jewelry. Assume the total volume of the jewelry is the sum of the volumes of the two metals it contains.
gold:
copper:
Pure gold is defined as having 24 carats. When mixed in an alloy, the carats of gold are given as a percentage of this value.
For example, a piece of jewelry made with 50% gold has 12 carats. State the purity of this piece of red gold jewelry
in carats.
purity:
carats
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Chapter 1 Solutions
Student Solutions Manual for Zumdahl/Zumdahl/DeCoste?s Chemistry, 10th Edition
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