Gas Law Practice Problems Exam With Correct
Answers,2025.
A sample of Ne gas occupies 34 mL at 8.0 atm. What will its volume be at 6.0 atm? Assume that temperature
j j j j j j j j j j j j j j j j j j j j j
and number of molecules remain constant.
j j j j j j j
PV=PV - CORRECT ANSWER✔✔45 mL
j j j j j
(8.0)(34)=(6.0)(V)
A balloon full of air has a volume of 2.75 L at a temperature of 18°C. What is the balloon's volume at 75°C?
j j j j j j j j j j j j j j j j j j j j j j
Assume that pressure and number of moles remain constant.
j j j j j j j j j j
V/T = V/T - CORRECT ANSWER✔✔3.29 L
j j j j j j j
2.75/291 = V/348 j j
, A cylinder of compressed gas has a pressure of 754 torr. on one day. The next day, the same cylinder of gas has a
j j j j j j j j j j j j j j j j j j j j j j j
pressure of 760 torr., and its temperature is -8°C. What was the temperature on the previous day in °C?
j j j j j j j j j j j j j j j j j j j
Assume the volume and number of molecules stay the same.
j j j j j j j j j j j
P/T = P/T - CORRECT ANSWER✔✔-10.1°C
j j j j j j
754/T = 760/265 j j
A student collects 4.10 L of a gas at 0.959 atm at 45°C. The next day the volume has increased to 3.70 L and the
j j j j j j j j j j j j j j j j j j j j j j j j
temperature is 37°C. What s the new pressure?
j j j j j j j j
PV/T = PV/T - CORRECT ANSWER✔✔1.04 atm
j j j j j j j
(.959)(4.10)/318 = (x)(3.70)/310 j j
There are three gases in a sealed chamber - oxygen with a pressure of 475 torr, carbon dioxide with a pressure
j j j j j j j j j j j j j j j j j j j j
of 220 torr and nitrogen with a pressure of 123 torr. What is the total pressure of the sealed chamber?
j j j j j j j j j j j j j j j j j j j j
Addition - CORRECT ANSWER✔✔818 torr j j j j j
475+220+123
Hydrogen gas is collected by water displacement. The total volume collected is 46.2 L at a temperature of 765
j j j j j j j j j j j j j j j j j j
torr. What is the pressure of dry hydrogen gas created?
j j j j j j j j j j
Pressure = Pgas + Pwater - CORRECT ANSWER✔✔749.5 torr
j j j j j j j j j
Answers,2025.
A sample of Ne gas occupies 34 mL at 8.0 atm. What will its volume be at 6.0 atm? Assume that temperature
j j j j j j j j j j j j j j j j j j j j j
and number of molecules remain constant.
j j j j j j j
PV=PV - CORRECT ANSWER✔✔45 mL
j j j j j
(8.0)(34)=(6.0)(V)
A balloon full of air has a volume of 2.75 L at a temperature of 18°C. What is the balloon's volume at 75°C?
j j j j j j j j j j j j j j j j j j j j j j
Assume that pressure and number of moles remain constant.
j j j j j j j j j j
V/T = V/T - CORRECT ANSWER✔✔3.29 L
j j j j j j j
2.75/291 = V/348 j j
, A cylinder of compressed gas has a pressure of 754 torr. on one day. The next day, the same cylinder of gas has a
j j j j j j j j j j j j j j j j j j j j j j j
pressure of 760 torr., and its temperature is -8°C. What was the temperature on the previous day in °C?
j j j j j j j j j j j j j j j j j j j
Assume the volume and number of molecules stay the same.
j j j j j j j j j j j
P/T = P/T - CORRECT ANSWER✔✔-10.1°C
j j j j j j
754/T = 760/265 j j
A student collects 4.10 L of a gas at 0.959 atm at 45°C. The next day the volume has increased to 3.70 L and the
j j j j j j j j j j j j j j j j j j j j j j j j
temperature is 37°C. What s the new pressure?
j j j j j j j j
PV/T = PV/T - CORRECT ANSWER✔✔1.04 atm
j j j j j j j
(.959)(4.10)/318 = (x)(3.70)/310 j j
There are three gases in a sealed chamber - oxygen with a pressure of 475 torr, carbon dioxide with a pressure
j j j j j j j j j j j j j j j j j j j j
of 220 torr and nitrogen with a pressure of 123 torr. What is the total pressure of the sealed chamber?
j j j j j j j j j j j j j j j j j j j j
Addition - CORRECT ANSWER✔✔818 torr j j j j j
475+220+123
Hydrogen gas is collected by water displacement. The total volume collected is 46.2 L at a temperature of 765
j j j j j j j j j j j j j j j j j j
torr. What is the pressure of dry hydrogen gas created?
j j j j j j j j j j
Pressure = Pgas + Pwater - CORRECT ANSWER✔✔749.5 torr
j j j j j j j j j
