Density Worksheet

General Chemistry
Review Worksheet
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Write out solutions to the following problems (Show all Work)

A rock has a mass of 127 g and displaces 32.1 mL of water. What is the density of the rock?





The density of a liquid is 0.821 g/mL. What is the volume of 71.3 g of this liquid?





The density of lead is 11.3 g/cm3. What is the mass of a 25 cm3 piece of this lead?





Convert the following:
24500 mm to km ______________
3.5 L to cm3 _____________
0.75 kg to mg _____________
13.5 km to meters _____________
65 g to kg _____________
0.12 L to mL _____________
670 g to mg _____________
3.5 m to cm _____________
Convert 1 day to seconds.


A chemistry instructor provides each student with 8 test tubes at the beginning of the year. If there are 28 students per class how many test tubes are required for three chemistry classes?




At a meeting, 28 people are each given 3 pens. If there are 8 pens in one package, priced at $1.88 per package, what is the total cost of giving away pens?




An object is traveling at the rate of 7500 centimeters per second. Convert this value to kilometers per minute.





A solid copper rod measured 12 mm by 2 cm by 1 m. If the density of copper is 8.92 g/cm3, what is the mass in kilograms of the copper rod?




Benzene has a density of 0.879 g/mL. What is the mass of 25 cm3 of benzene?



The density of mercury is 13.6 g/mL. What volume would 120 g of mercury occupy?



The mass of 10 cm3 of iron was determined to be 78.7 grams. What is its density?



If one nanometer = 10-9 meters, convert 3.2 nanometers to millimeters.



Answers:

0.530 g/mL
86.8 mL
283 g
a. 0.0245 km
b. 5000 cm3
c. 750000 mg
d. 13500 m
e. 0.065 kg
f. 120 mL
g. 0.670 mg
h. 350 cm
5. 86400 s
6. 192 test tubes
7. $20.68
8. 4.5 km/min
9. 0.214 g
10. 22.0 g
11. 8.82 mL
12. 7.87 g/ cm3
13. 3.2 times ten to the twelfth