Metric Units And Conversions Page 7
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8Practice Problems – try these on a separate sheet of paper
1. Convert 33.26 mL to L.
2. Convert 0.146 decigrams into milligrams
3. Convert 3.50 10
7
cm to km.
4. What is the mass in kilograms of a person weighing 175 pounds?
5. What is the volume in cups for a 2.0 L bottle?
6. Calculate the volume of a silver bar measuring 75 cm by 95 cm by 42 cm.
7. A diamond is placed in a graduated cylinder containing 35.0 mL of water. The volume of
the water rises to 51.5 mL. What is the volume of the diamond?
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8. Given the density of gold is 19.3 g/cm
, write two unit factors.
9. Ethanol is used in alcoholic beverages and has a density of 0.789 g/mL. What volume of
ethanol (in mL) would have a mass of 500.0 g?
3
10. Aluminum has a density of 2.70 g/cm
. What is the mass of a piece of aluminum with a
volume of 0.525 mL?
11. A piece of silver metal weighing 194 g is placed in a graduated cylinder containing 42.0
mL of water. The volume of water rises to 60.5 mL. Calculate the density of silver.
12. The book Fahrenheit 451 is based on 451˚F, the temperature at which paper ignites and
burns. What is this temperature in degrees Celsius?
13. You win a trip to London in July. When you look up the average temperature, you find
that it’s expected to be about 28°C. What is the temperature in degrees Fahrenheit?
14. Room temperature is generally taken to be 25°C. What is the equivalent temperature in
Kelvin?
15. In the movie Terminator 2, a tanker crashes and pours out liquid nitrogen. This freezes
the T-1000 because liquid nitrogen has a temperature of 77 K. What is the equivalent
temperature in degrees Celsius?
16. A small chunk of gold is heated in beaker #1, which contains boiling water. The gold
chunk is then transferred to beaker #2, which contains room-temperature water.
a. Does the temperature of the gold chunk increase, decrease, or stay the same?
Explain your answer.
b. Does the temperature of the water in beaker #2 increase, decrease, or stay the
same? Explain your answer.
c. What loses heat? What gains heat?
17. What happens when you hold an ice cube? What loses heat? What gains heat?
18. You just won 1460 quarters playing quarter slots. How many dollars is this?
19. You decide to take a trip to San Diego, which is about 355 miles from Glendale. If you
average 65 mph with no stops, how many hours does it take to get there?
20. How many yards are there in a 26.2 mile marathon? (There are 5280 feet in one mile)
Answers to Practice Problems
1. 33.26 mL (
) = 0.03326 L
2. 0.146 dg (
) (
) = 14.6 mg
3. 3.50 10
) = 3.50 10
cm (
) (
7
2
km
Smith, Clark
GCC CHM 130
Chapter 3: Metric Units and Conversions
page 7
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