Unit 3 - Molar Volume

What is the Gram Formula Mass (GFM) of sulfur trioxide (SO₃)?

• 32.1 g

• 48 g

• 80.1 g

• 64.1 g

What are the two main methods for gas collection?

• Gas syringe and collection over water

• Gas syringe and collection over oil

• Collection over water and collection over oil

• Collection over oil and collection over air

What do the particles look like in a gas?

• Particles are closely packed

• Particles are randomly spaced and move freely

• Particles are in a fixed position

• Particles are in a regular pattern

What is the volume that one mole of a gas occupies known as?

• Atomic volume

• Molar volume

• Molecular volume

• Gas volume

At the same temperature and pressure, what do all gases have in common?

• The same atomic volume

• The same molecular weight

• The same molar volume

• The same density

What is the molar volume of a gas at standard conditions?

• 22.4 L mol⁻¹

• 24 L mol⁻¹

• 20 L mol⁻¹

• 18 L mol⁻¹

What are the units for molar volume?

Match the following temperatures in Kelvin (K) to the corresponding temperature in degrees Celsius (^ₒC).

K - 273 = ^ₒC

• 25 ^ₒC

• 310 K

• • 0 ^ₒC

• 273 K

• 37 ^ₒC

• 285 K

• 12 ^ₒC

• 298 K

• -23 ^ₒC

• 250 K

What are the standard conditions for measuring molar volume?

• 298 K and 1 atm pressure

• 273 K and 1 atm pressure

• 273 K and 2 atm pressure

• 298 K and 2 atm pressure

What is the volume of one mole of any gas at the same temperature and pressure?

• 22.4 litres

• 24 litres

• 20 litres

• 18 litres