Gas Laws and Avogadro's Number

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 2.00 L sample of pure oxygen gas (O₂) is measured at STP.  How many moles of oxygen is this?

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

How many molecules are there in a 110 L sample of gas at STP?

• 8 x 10²³ molecules
• 8 x 10²⁴  molecules
• 3 x 10²⁴ molecules
• 3 x 10²³ molecules

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

A sample of carbon dioxide at STP is 0.50 L.  How many grams of carbon dioxide do we have?

• 0.48 g
• 0.49 g
• 1.96 g
• 0.98 g

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