Gas Laws Quiz #2

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

Determine the Kelvin temperature required for 0.0470 mol of gas to fill a balloon to 1.20 L under .998 atm pressure. 

• 0 K 
• 107 K 
• 207 K 
• 307 K 

What pressure, in atm, is exerted by 2.50 L of gas containing 1.35 mol at 320 K?
PV=nRT

• 14.19 atm
• 16.53 atm
• 18.42 atm
• 22.54 atm

Molar volume of any gas at STP

• 22.4 L
• 2.24 L
• 6.02 x 10²³ L
• 224 L

If 3.25 mol of Ar occupies 100. L at a particular temp and pressure, what volume does 14.15 mol of Ar occupy under same condition?

• 435 L
• 225 L
• 100 L
• 522 L

A sample of pure oxygen gas at STP measures out to be 2.00 L.  How many moles of oxygen is this?

• 24.4 mol
• 0.007 mol
• 1.44 mol
• 0.09 mol

Gases of the same volume contain the same number of molecules.  This is the description of:

• Boyle's law
• Dalton's law
• Charles' law
• Avogadro's law

What is the value of STP?

• 0 K and 1 atmosphere

• 0 C and 1 atmosphere

• 32 F and 1 atmosphere

• 100 C and 1 atmosphere

What is the total pressure of the heliox gas in the diagram?

• 300 kPa

• 100 kPa

• 400 kPa

• 500 kPa

In a mixture of gases, each gas contributes to the total pressure. The individual contribution of each gas is known as the _________________.

• partial volume

• partial pressure

• molar mass

• mole ratio