Molecular Formulas

What is the molecular formula if the empirical formula is CH₂O and the molecular molar mass is 180.18?

• CH₂O
• C₂H₄O₂
• C₄H₈O₄
• C₆H₁₂O₆

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

A chemical formula that shows the actual # and kinds of atoms present in one molecule of a compound is called_________

• ionic formula
• covalent formula
• empirical formula
• molecular formula

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

• K₂SO₄ 
• K₈SO₁₆
• K₈S₄O₈ 
• K₈S₄O₁₆ 

What is the molecular formula for a compound with the empirical formula: CaCl₂  and a molecular mass of 330g.

• Ca₂Cl₄
• Ca₃Cl₆
• Ca₃Cl₉
• Ca₃Cl₅

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

• CH₂O

• C₂H₄O₂

• C₄H₈O₄

• C₆H₁₂O₆

What is the molecular formula for a compound with the empirical formula: CaCl₂ and a molecular mass of 220g.

• Ca₂Cl₄

• Ca₃Cl₆

• Ca₃Cl₉

• Ca₃Cl₅