Chemistry
9th Edition
ISBN: 9781133611097
Author: Steven S. Zumdahl
Publisher: Cengage Learning
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Textbook Question
Chapter 1, Problem 42E
Perform the following unit conversions.
- a. 908 oz to kilograms
- b. 12.8 L to gallons
- c. 125 mL to quarts
- d. 2.89 gal to milliliters
- e. 4.48 lb to grams
- f. 550 mL to quarts
Expert Solution & Answer
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Assume you measured an irregular shaped object in a beaker to be 149.167 g, and you know that the empty beaker weighs 96.222 g. You then carefully drop this object in a graduated cylinder containing 20.0 mL of water, and the water level rises to 42.3 mL. Calculate the final density of the irregular shaped object to the correct number of significant figures.
a.
1.25
b.
2.37
c.
7.46
d.
4.31
e.
3.53
4. If an object has a density of 4.05 g/cm³, what is its density in units of kg/m³?
d. 4.05 x 10¹ kg/m³
a. 4.05 x 10¹ kg/m³
b. 4.05 x 10¹ kg/m³
c. 4.05 x 10-7 kg/m³
e. 4.05 × 10¹ kg/m³
1. What is the sum of 89.332 g and 1.1 g?
a. 90.4g
b. 90.432g
C. 90.0g
d. 90.43g
2. What is the difference between 2.097 g and 0.12 g?
a. 1.98g
b. 1.977g
C. 1.97g
d. 1.98
3. What is the mass of a substance having a density of 2.8 g/cm^3 occupying
a volume of 4.5039 cm^3?
a. 12.61092 g
b. 13 g
C. 12.6109 g
d. 12.6 g
4. What is the density of a substance having a mass of 6.85 g occupying a
volume of 112.04 cm^3?
a. 0.061138 g/cm^3
b. 0.06114 g/cm^3
C. 0.0611 g/cm^3
d. 0.061 g/cm^3
5. How many significant figures are there in 6.02 x 10^23 H atoms?
a. 1
b. 2
c. 3
d. 23
Chapter 1 Solutions
Chemistry
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