Gas Review Problems: GO BACK
1) A quantity of gas has a volume of 200 dm3
at 17oC and 106.6 kPa. To what temperature (oC) must
the gas be cooled for its volume to be reduced to 150 dm3 at a
pressure of 98.6 kPa?
Answer
2) A quantity of gas exerts a pressure of 98.6
kPa at a temperature of 22oC. If the volume remains unchanged,
what pressure will it exert at -8oC?
Answer
3) A quantity of gas has a volume of
120 dm3 when confined under a pressure of 93.3 kPa at a temperature
of 20oC. At what pressure will the volume of the gas be 30 dm3
at 20oC?
Answer
4) What is the mass of 3.34 dm3
sample of chlorine gas if the volume was determined at 37oC and 98.7
kPa? The density of chlorine gas at STP is 3.17 g/dm3.
Answer
5) In an airplane flying from San Diego
to Boston, the temperature and pressure inside the 5.544-m3 cockpit
are 25oC and 94.2 kPa, respectively. How many moles of air
molecules are present?
Answer
6) Iron (II) sulfide reacts with hydrochloric acid
as follows:
FeS(s) + 2 HCl(aq)
--> FeCl2(aq) + H2S(g)
What volume of H2S, measured at 30oC
and 95.1 kPa, will be produced when 132 g of FeS reacts?
Answer
7) What is the density of nitrogen gas
at STP (in g/dm3 and kg/m3)?
Answer
8) A sample of gas at STP has a density
of 3.12 x 10-3 g/cm3. What will the density of the
gas be at room temperature (21oC) and 100.5 kPa?
Answer
9) Suppose you have a 1.00 dm3
container of oxygen gas at 202.6 kPa and a 2.00 dm3 container of
nitrogen gas at 101.3 kPa. If you transfer the oxygen to the container
holding the nitrogen,
a) what pressure would the nitrogen
exert?
b) what would be the total pressure
exerted by the mixture?
Answer
10) Given the following information:
Answer
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