Gas Problems Name_________________________________________
Date___________________________Period______
1. A closed manometer is filled with mercury
and connected to a container of helium gas.
The difference in the height of mercury
in the two arms is 195.5 mm. What is
the pressure, in atmospheres, of the helium gas in the container?
2. A closed manometer is filled with mercury
and connected to a container of hydrogen gas.
The difference in the height of mercury
in the two arms is 534.0 mm. What is
the pressure, in atmospheres, of the hydrogen gas in the container?
3. An open manometer is filled with mercury and
connected to a container of fluorine gas.
The mercury level is 90.0 mm higher
in the arm of the tube connected to the air.
The air pressure is 1.000 atm.
What is the pressure, in atmospheres, of
the fluorine gas in the container?
4. An open manometer is filled with mercury and
connected to a container of freon gas.
The mercury level is313.2 mm higher
in the arm of the tube connected to the gas sample. The air pressure is 1.202 atm.
What is the pressure, in atmospheres,
of the freon gas in the container?
5. A closed manometer is filled with mercury
and connected to a container of oxygen gas.
The difference in the height of mercury
in the two arms is 181.1 mm. What is
the pressure, in atmospheres, of the oxygen gas in the container?
6. An open manometer is filled with mercury and
connected to a container of neon gas.
The mercury level is 26.8 mm higher
in the arm of the tube connected to the air.
The air pressure is 1.062 atm.
What is the pressure, in atmospheres, of
the neon gas in the container?
7. A closed manometer is filled with mercury
and connected to a container of ammonia gas.
The difference in the height of mercury
in the two arms is 771.5 mm. What is
the pressure, in atmospheres, of the ammonia gas in the container?
8. An open manometer is filled with mercury and
connected to a container of nitrogen gas.
The mercury level is 327.15 mm higher
in the arm of the tube connected to the gas sample. The air pressure is 0.966 atm.
What is the pressure, in atmospheres,
of the nitrogen gas in the container?
Boyle, Charles, Gay-Lussac,
Avogadro, and Combined Gas Laws
8. The volume of CO2 gas at 0.890 atm was measured to be
545 mL. What will be it's volume at
standard pressure?
9. A 82.8 mL volume of krypton gas is collected
at 48.0 ºC. What volume will it occupy
at standard temperature?
10. A volume of helium gas is collected at
standard pressure and temperature. What
pressure will it exert at 57.0 ºC?
11. A 22.8 mL volume of krypton gas has 0.00125
moles of gas. What volume will it
occupy with 0.00255 moles?
12. 210.0 mL of neon gas was measured
at 0.890 atm pressure and 37.0 ºC. What
volume will the gas occupy at STP?
13. A 1570 cm3 container of ammonia
gas is exerting a pressure of 2.175 atm while at a temperature of 130. ºC. Calculate
the new pressure if the container size
is changed to 2500. cm3 at a temperature of 27.0 ºC.
14. A 3.24 m3 volume of argon gas has 5.23 moles
of gas. What volume will it occupy with
0.135 moles?
15. A volume of hydrogen gas is collected at
1.964 atm and 12.0 ºC. What pressure
will it exert at –23.0 ºC?
16. A 4.04 m3 volume of argon gas is
collected at –53.0 ºC. What volume will it occupy at 34.0 ºC?
17. The volume of NH3 gas at 0.790 atm was measured to be
47.5 m3. What will be it's volume at
0.994 atm?
18. A 7.38 L volume of argon gas is collected
at –53.0 ºC. At what temperature, in ºC, will it occupy a volume of 1.54 L?
19. A 3.84 L volume of argon gas has 0.890 moles
of gas. How many moles will occupy a
volume of 1.45 L?
20. The volume of H2 gas at 1.106 atm
was measured to be 3.10 L. What will be
the pressure if the volume is allowed to change
to 0.795 L?
21. A volume of krypton gas is collected at
0.669 atm and –34.0 ºC. What will the
temperature be, in ºC, if the pressure is allowed
to increase to 1.430 atm?
22. A volume of 806. cm3 of ammonia
gas collected at 26.0 ºC and 1.017 atm will have what volume at STP?
23. A 478.3 cm3 volume of ammonia gas
has 0.00745 moles. How many moles will
occupy a volume of 965.1 cm3?
24. The volume of O2 gas at 0.961 atm
was measured to be 5302 mL. What will
be the pressure if the volume is allowed to
change to 3600. mL?
25. A volume of helium gas is collected at 2.809
atm and –15.0 ºC. What will the temperature be, in ºC, if the pressure is allowed to decrease to 1.312 atm?
26. A volume of 3.92
m3 of
oxygen gas is collected at –12.0 ºC and 0.776 atm. What is the volume at 0.814 atm and 22.0 ºC?
27. A 847.3 cm3 volume of ammonia gas
is collected at 65.0 ºC. At what temperature, in ºC, will it occupy a
volume of
659.1 cm3?
Dalton's Law
28. A quantity of He gas was collected over
water at 60.0 ºC in a side arm flask at a pressure of 0.894 atm. The water inside and outside the flask
are the same level. What is the
pressure of the dry He gas? (PH2O
at 60.0 ºC = 0.0313 atm)
29. A quantity of H2 gas was collected over water
at 25.0 ºC in a side arm flask at a pressure of 0.971 atm. The water inside and outside the flask
are the same level. What is the
pressure of the dry H2 gas? (PH2O
at 25.0 ºC = 0.197 atm)
Dalton's Law with the Combined Gas
Law, Density, and Graham's Law
30. 1632.0 cm3 of hydrogen gas is collected over
water at a pressure of 1.604 atm and 70.0 ºC. What is the volume of the dry
gas at 1.234 atm and 45.0 ºC? (PH2O at 70.0 ºC = 0.308 atm)
31. A gas with a mass of 0.350 grams was
collected at 31.0 ºC and 1.022 atm and found to have a volume of 489 mL. What
is its density at 28.0 ºC and 0.979 atm?
32. What is the ratio of the speed of nitrogen
molecules to the speed of argon atoms when both gases are at the same temperature?
33. A gas with a
mass of 8.30 grams was collected at standard pressure and temperature and found
to have a volume of 338 cm3. What is its density at 99.0 ºC and 1.135
atm?
34. At a certain temperature, the velocity of
oxygen molecules is 0.0760 m/s. What is
the velocity of neon atoms at the same
temperature?
35. An unknown gas has an effusion rate of 26.2
m/s. At the same temperature and
pressure, carbon dioxide has an effusion
rate of 52.4 m/s. What is the molar
mass of the unknown gas?
36. A gas with a mass of 9.14 grams was
collected at 25 ºC and 0.794 atm and found to have a volume of 2.54 L. What is its
density at standard pressure and temperature?
Ideal Gas Law, Molar Volume
37. What pressure will be exerted by 0.125 moles
of neon gas, Ne, contained in a 9.22 L vessel at 25.0 ºC?
38. How many moles are contained in 3.40 L of
krypton gas, Kr, at STP?
39. How many moles of gas can occupy a 449 cm3 flask at 12.5 ºC and 0.658 atm?
40. What is the volume, of 0.560 moles of
hydrogen gas, H2, at STP?
41. What volume, will be occupied by 61.73 grams
of argon gas, Ar, at 0.978 atm and 9.00 ºC?
42. At what temperature is a gas if 0.0932 moles
of it are found in a 995 cm3 vessel at 0.968 atm?