One Step Mole Retake TEST

Calculate the molar mass of H2O.

• 20.00 g/mol

• 16.04 g/mol

• 22.99 g/mol

• 18.02 g/mol

How many moles are in 24 grams of magnesium?

• 1 mole

• 12 moles

• 24 moles

• 0.5 moles

Convert 3 moles of CO2 to molecules.

• 1.8066 x 10^23 molecules

• 1.8066 x 10^24 molecules

• 3 x 10^23 molecules

• 3 x 10^24 molecules

What is the volume of 2 moles of oxygen gas at STP?

• 55.6 liters

• 22.4 liters

• 33.6 liters

• 44.8 liters

Find the molar mass of NaCl.

• 23.00 g/mol

• 58.44 g/mol

• 40.08 g/mol

• 12.01 g/mol

How many moles are in 36 grams of water?

• 0.5 moles

• 2 moles

• 10 moles

• 5 moles

Convert 5 moles of H2 to molecules.

• 3.011 x 10^24 molecules

• 1.5 x 10^24 molecules

• 5 x 10^24 molecules

• 2.5 x 10^24 molecules

What is the volume of 4 moles of nitrogen gas at STP?

• 44.8 liters

• 22.4 liters

• 89.6 liters

• 10.0 liters

Determine the molar mass of CO2.

• 22.01 g/mol

• 36.02 g/mol

• 44.01 g/mol

• 50.03 g/mol

How many moles are in 16 grams of methane?

• 0.5 moles

• 10 moles

• 16 moles

• 1 mole