Chemistry
12th Edition
ISBN: 9780078021510
Author: Raymond Chang Dr., Kenneth Goldsby Professor
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 1, Problem 1.56QP
In determining the density of a rectangular metal bar, a student made the following measurements: length, 8.53 cm; width, 2.4 cm; height, 1.0 cm; mass, 52.7064 g. Calculate the density of the metal to the correct number of significant figures.
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In determining the density of a rectangular metal bar,a student made the following measurements: length,8.53 cm; width, 2.4 cm; height, 1.0 cm; mass, 52.7064 g.Calculate the density of the metal to the correct numberof significant figures.
A chemistry student needs 35.0 mL of dimethyl sulfoxide for an experiment. By consulting the CRC Handbook of Chemistry and Physics, the
student discovers that the density of dimethyl sulfoxide is 1.10 g·cm
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Calculate the mass of dimethyl sulfoxide the student should weigh out.
Be sure your answer has the correct number of significant digits.
?
You are a technician in an analytical laboratory and are asked to determine from its density whether an antique coin might be gold. You weigh the coin and find that its mass is 84.6419 g. When you place the coin in a graduated cylinder containing 105.53 mL of water, the water level rises to 114.64 mL. Calculate the density of the coin from your measurements, and determine how many significant figures should be included in the reported result. Which one of the following numbers will you put in your report for the density of the coin?
Chapter 1 Solutions
Chemistry
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