Mole-Mass-Volume Relationships

Calculate the molar mass of H2O.

• 20.015 g/mol

• 18.015 g/mol

• 16.043 g/mol

• 22.015 g/mol

Convert 25.0 grams of NaCl to moles.

• 0.750 moles

• 0.428 moles

• 0.625 moles

• 0.312 moles

What is the molar mass of CO2?

• 36.02 g/mol

• 44.01 g/mol

• 22.01 g/mol

• 50.03 g/mol

If you have 3.50 moles of Mg, what is the mass in grams?

• 65.4321 g

• 92.3456 g

• 78.9012 g

• 85.0675 g

Determine the number of moles in 64.0 grams of CH4.

• 10.0 moles

• 6.0 moles

• 8.0 moles

• 4.0 moles

Find the molar mass of Fe2O3.

• 159.69 g/mol

• 175.32 g/mol

• 143.69 g/mol

• 167.25 g/mol

Convert 0.75 moles of H2SO4 to grams.

• 63.45 grams

• 58.56 grams

• 42.36 grams

• 50.28 grams

How many grams are in 2.5 moles of CaCO3?

• 250.225 g

• 205.522 g

• 225.250 g

• 200.525 g

Calculate the molar mass of NH3.

• 17.03 g/mol

• 18.02 g/mol

• 15.99 g/mol

• 14.01 g/mol

If you have 12.0 grams of Al, how many moles is that?

• 0.678 moles

• 0.123 moles

• 0.445 moles

• 1.234 moles