Chapter 12 Practice Problems Dalton
Dalton’s Law of Partial Pressures questions:
1. A high-pressure tank contains the following gases by pressure:
Nitrogen
Oxygen
Carbon Dioxide
Methane
Cyclohexane
500.0 kPa
650.0 kPa
2.000 x 103 kPa
7.250 x 102 kPa
85.00 kPa
Calculate the total pressure inside the high-pressure tank of gases.
2. Calculate the total pressure of this system of gases.
15.25 atm of O
9.55 atm of N
2
2
2.65 atm of CO
2
23.25 atm of CH
4
3. Calculate the total pressure, in atmospheres, of this system of gases.
1525 mm Hg of O
955 Torrs of N
2
2
26.5 PSI of CO
325 kPa of CH
2
4
4. A high-pressure tank contains the following gases by pressure:
Nitrogen
2.50 atm
Argon
455.96 kPa
Propane
8.25 atm
Methane
5130 mm Hg
Cyclohexane
?
If the total pressure inside the tank of gases is 28.50 atm, calculate the
partial pressure of the Cyclohexane.
Chapter 12 Practice Problems Dalton
5. The earth’s atmosphere contains the following gases by percent:
Nitrogen
Oxygen
Argon
Carbon Dioxide
Neon
Helium
Krypton
The Rest
78.084 %
x
0.934 %
0.0315 %
0.001818 %
0.000524 %
0.000114
0.0000087 %
Calculate the percent oxygen in the earth’s atmosphere.
6. At sea level the earth’s atmospheric pressure is 101.325 kPa. Calculate
the partial pressure of oxygen (kPa) at sea level.
7. Calculate the partial pressure of nitrogen (atm) at sea level.