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Dr. Harvey Moody
Gas Laws
1. Gases consist mostly of
a. electron clouds
b. atomic nuclei
c. empty space
d. ions
2. A balloon originally had a volume of 4.39 L at 44°C and a pressure of 729 torr. To
what temperature must the balloon be cooled to reduce its volume to 3.78 L if the
pressure is constant?
a. 38°C
b. 0°C
c. 72.9°C
d. 273°C
3. 24.2 g of a gas initially at 4.00 atm is compressed from 8.00 L to 2.00 L at constant
temperature. What is the resulting pressure in atm of the gas?
a. 4.00 atm
b. 2.00 atm
c. 8.00 atm
d. 16.0 atm
4. A gas originally at 27°C and 1.00 atm pressure in a 3.9 L flask is cooled at constant
pressure until the temperature is 11°C. What is the new volume of the gas?
a. 0.27 L
b. 3.7 L
c. 3.9 L
d. 4.1 L
5. What volume of hydrogen gas at 38.0°C and 763 torr can be produced by the
reaction of 4.33 g zinc with excess sulfuric acid?
a. 1.68 L
b. 2.71 x 10
4
L
c. 3.69 x 10
4
L
d. 2.84 L
6. How many moles of gas occupy 60.82 L at 31.0°C and 367 torr?
a. 1.18 mol
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This note was uploaded on 04/25/2010 for the course CHEM 204 taught by Professor Prof.k during the Spring '10 term at Bradley.
 Spring '10
 Prof.K
 Electron, Electron Cloud

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