Caffeine Has the Empirical Formula C₄H₅N₂O and an Approximate Molecular

question 39

Multiple Choice

Caffeine has the empirical formula C₄H₅N₂O and an approximate molecular weight of 194.2 g/mol. What is its molecular formula?

• A) C₄H₅N₂O
• B) C₂H₂NO
• C) C₈H₁₀N₄O₂
• D) C₄H₄N₄O₄
• E) C₂H₂N₂O₂

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