Molar Mass

What is the molar mass of CO₂?

• 12.01

• 16.00

• 32.00

• 44.01

What is the mass of one mole of aluminum chloride (remember to determine the correct formula first)?

• 62.44g

• 116.40g

• 133.34g

• 97.89g

What is the Molar mass of the Baking Soda? (NaHCO₃)

• 84.01 g

• 83.01 g

• 52.00 g

• 108.04 g

What is the molar mass of AuCl₃?

• 96.00 g

• 130.00 g

• 232.50 g

• 303.30 g

Find the percentage composition of Mg in Mg₃(PO₄)₂.

• 27.48% Mg

• 43.11% Mg

• 16.00% Mg

• 12.63% Mg

Calculate the molar mass of Ba(C₂H₃O₂)₂

• 255.30 g/mol

• 237.30 g/mol

• 228.30 g/mol

• 196.30 g/mol

What is the mass percentage of Carbon in Carbon dioxide (CO₂)?

• 27.27%

• 42.86%

• 72.73%

• 72.72%

Find the percentage composition of Mg in Mg₃(PO₄)₂.

• 27.48% Mg

• 43.11% Mg

• 16.00% Mg

• 12.63% Mg

Name the following ionic compound: MgSO₄*7H₂O

• magnesium sulfate * hexahydarte
• magnesium sulfate hexahydarte
• magnesium sulfate heptahydrate
• magnesium sulfate* heptahydrate

Find the percent composition of Cu₂S?

• Cu= 67.987%; S= 32.013%

• Cu= 79.854%: S= 20.145%

• Cu= 35.946%; S= 64.054%

• Cu= 39.925%; S= 20.151%