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Name:
Gas Stoichiometry & Applications of the Ideal Gas Equation
Multiple Choice
Identify the letter of the choice that best completes the statement or answers the question.
A
B
C
D
1.
Given the reaction: 2 PbO --> 2 Pb + O
2
What is the total volume of O
2
, measured at STP, produced when 1.00 mole of PbO decomposes?
a.
5.60 L
b.
11.2 L
c.
22.4 L
d.
44.8 L
A
B
C
D
2.
A sample of an unknown gas at STP has a density of 0.630 grams per liter. What is the molar mass of this gas?
a.
2.81 g/mole
c.
22.4 g/mole
b.
14.1 g/mole
d.
63.0 g/mole
A
B
C
D
3.
Given the balanced equation: C
3
H
8
+ 5 O
2
--> 3 CO
2
+ 4 H
2
O
What is the total number of liters of CO
2
produced when 20.0 liters of O
2
are completely consumed?
a.
12.0 L
b.
22.4 L
c.
3.00 L
d.
5.00 L
A
B
C
D
4.
Given the balanced equation: Ca + 2 H
2
O --> Ca(OH)
2
+ H
2
When 80.2 grams of Ca react completely with the water, what is the total volume, at STP, of H
2
produced?
a.
1.00 L
b.
2.00 L
c.
22.4 L
d.
44.8 L