Molecular formula

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 for a compound with the empirical formula K₂SO₄ and a molecular mass of 696G?

• K₂SO₄

• K₈SO₁₆

• K₈S₄O₈

• K₈S₄O₁₆

EF = CF₂

_{Molecular formula mass = 192}

MF = ?

• C₄F₈

• C₄F

• CF₈

• C₂F₄

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

Epinephrine (adrenaline) is a hormone secreted into the bloodstream in times of stress. It contains 59.0% C, 7.15% H, 26.20% O, 7.65%N and has a molar mass of 183 g/mol. What is its molecular formula?

• C₉H₁₃NO₃

• C₅H₁₁N₃O₂

• C₈H₁₂NO₂

• C₇H₉N₂O