Section 14.2
The Combined Gas Law and Avogadro's Principle
Practice Test
1.
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What volume will 0.554 mol of gas occupy at STP?
a.
0.25 L
b.
3.34 L
c.
12.4 L
d.
40.4 L
Hint
2.
Which of the following states that equal volumes of gases at the same temperature and pressure contain the same number of particles?
a.
Boyle’s law
b.
Gay-Lussac’s law
c.
Charles’s law
d.
Avogadro’s principle
Hint
3.
How can the molar volume of a gas be defined?
a.
the volume that one mole occupies at STP
b.
the volume that one gram occupies at STP
c.
the volume that one mole occupies at 100°C and 1 atm pressure
d.
the volume that one gram occupies at 100°C and 1 atm pressure
Hint
4.
What is the volume of 2.0 moles of a gas at STP?
a.
44.8 L
b.
22.4 L
c.
0.0223 L
d.
0.0446 L
Hint
5.
If 1.00 L of a gas is 4.40 times as heavy as 1.00 L of O
2
at the same temperature and pressure, then what is the molar mass of the unknown gas?
a.
67.0 g/mol
b.
70.4 g/mol
c.
88.0 g/mol
d.
141 g/mol
Hint
