Molar Mass of Compounds

Glycerol has a molar mass of 92.09g/mol. Its percent composition is: 39.12% C, 8.75% H, and 51.12% O. What is the molecular formula for glycerol?

• C₂H₃O₂

• CH₂O

• C₂H₄O₂

• C₃H₈O₃

What is the molecular formula if the empirical formula is C₂H₅ and the molecular molar mass is 58.14 g/mol?

• C₂H₅

• C₄H₁₀

• C₁H_2.5

• C₄H₈

What is the molecular formula of a compound with an empirical formula of C₂OH₄ and a molar mass of 88 grams per mole?

• C₂O₄H₈

• C₈O₂H₄

• C₄O₂H₈

• C₄O₈H₂

What is the molecular formula if the empirical formula is CH₂O and the molecular molar mass is 120?

• CH₂O

• C₂H₄O₂

• C₄H₈O₄

• C₆H₁₂O₆

A compound has the molar mass of 170.0 g/mol and an empirical formula of SiF₃. The compounds molecular formula is

• SiF₃

• Si₂F₆

• Si₅F₁₅

• Si₄F₁₂

What is the molecular formula for a compound with the empirical formula: K₂SO₄ and a molecular mass of 696g.

• K₂SO₄ 

• K₈SO₁₆

• K₈S₄O₈ 

• K₈S₄O₁₆ 

the mass in grams of 1 mole of a substance

• formula mass

• electrolysis

• molar mass

• binary compound

What is the molar mass of water (H2O)?

• 18.02 g/mol

• 20.02 g/mol

• 16.00 g/mol

• 22.02 g/mol