1. A gas mixture consists of 0.330 mol hydrogen (H2), 0.513 mol
carbon dioxide (CO2), and 2.207 mol nitrogen (N2). If the total
pressure of the mixture is 3.05 atm, calculate the partial pressure
of each component gas in the mixture.
H2 ___ atm
CO2 ___ atm
H2 ___ atm
2. What is the mole fraction of nitrogen
in a mixture of O2, N2, and He in which the partial pressure of O2
is 0.75 atm, the partial pressure of He is 1.42 atm, and the total
pressure of the system is 2.97 atm?
3. The total pressure exerted by air at 500 m above sea
level is 716 mm Hg. The nitrogen gas (N2) component of air exerts a
partial pressure of 559 mm Hg. What is the mole fraction of
nitrogen in the air?
4. The total pressure of a mixture of gases is 0.490 atm.
If the mole fraction of helium in the mixture is 0.28, what is the
partial pressure of helium in the mixture? ___ atm
5. The total pressure exerted by a mixture of hydrogen,
oxygen, and nitrogen gases is 2.4 atm. The oxygen gas exerts a
partial pressure of 1.5 atm and the nitrogen gas exerts a partial
pressure of 0.6 atm. What is the partial pressure exerted by the
hydrogen gas? ___ atm
6. A flask contains a mixture of oxygen, nitrogen, and hydrogen
gases. If the partial pressure of oxygen is 523.0 mm Hg, that of
nitrogen is 838.0 mm Hg, and that of hydrogen is 320.0 mm Hg, what
is the total pressure in the flask? Assume that the gases do not
react with one another and that the temperature of the system is
held constant. ___ mm Hg
7. A sample of carbon monoxide was collected over water at
a total pressure of 763 torr and a temperature of 35Ā°C. What is the
pressure (in torr) of the carbon monoxide? ___ torr
8. A mixture of 0.225 g of H2, 1.17 g of N2, and 0.815 g of
Ar is stored in a closed container at STP. Find the volume (in L)
of the container, assuming that the gases exhibit ideal behavior.
___ L