Avogadro's Law, Dalton's Law, Ideal Gas Law

If the pressure exerted by a gas at 25 degrees C in a volume of 0.044 L is 3.81 atm, how many moles of gas are present?

• .002766 mole
• .0069 mol
• 2.766 mol
• 9.887 mol

A container holds three gases: oxygen, carbon dioxide, and helium. The partial pressures of the three gases are 2.00 atm, 3.00 atm, and 4.00 atm, respectively. What is the total pressure inside the container?

• 2 atm
• 4 atm
• 3 atm
• 9 atm

A mixture of hydrogen, nitrogen, and water vapor has a total pressure of 864 mmHg. The partial pressure of hydrogen is 220 mmHg and that of nitrogen is 410 mmHg. What is the partial pressure of water vapor?

• 234 mmHg
• 1.37 mmHg
• 2.64 mmHg
• 1, 494 mmHg

The partial pressure of gas X is 340 torr. The partial pressure of gas Y is 264 torr. The partial pressure of gas Z is 100 torr. What is the total pressure exerted by the gases in this system? 

• 76 torr
• 440 torr
• 604 torr
• 704 torr

A mixture of hydrogen, nitrogen, and water vapor has a total pressure of 864 mmHg. There are 2 moles of hydrogen, 5 moles of nitrogen, and 8 moles of water vapor. What is the partial pressure of the nitrogen?

• 115 mmHg

• 288 mmHg

• 461 mmHg

• 859 mmHg

A mixture of hydrogen, nitrogen, and water vapor has a total pressure of 864 mmHg. There are 2 moles of hydrogen, 5 moles of nitrogen, and 8 moles of water vapor. What is the partial pressure of the hydrogen?

• 115 mmHg

• 288 mmHg

• 461 mmHg

• 859 mmHg

A mixture of hydrogen, nitrogen, and water vapor has a total pressure of 785 mmHg. There are 6 moles of hydrogen, 2 moles of nitrogen, and 4 moles of water vapor. What is the partial pressure of the water vapor?

• 393 mmHg

• 262 mmHg

• 461 mmHg

• 131 mmHg

A gas is heated from 263K to 298K. The volume is increased from 24.0L to 35.0L. If the original pressure is at STP, what is the new pressure?

• 0.78 atm

• 1.65 atm

• 1.28 atm

• 0.61 atm

At STP, what is pressure in atmospheres?

• 1 atm
• 10 atm
• 0 atm
• 100 atm

Calculate the volume that a 0.323-mol sample of a gas will occupy at 265 K and a pressure of 0.900 atm.

• 7.18 L 
• 7.81 L
• 4.63 L
• 4.36 L