A 0271-G Sample of an Unknown Vapor Occupies 294 ML at at 140°C

question 115

Multiple Choice

A 0.271-g sample of an unknown vapor occupies 294 mL at 140°C and 847 mmHg. The empirical formula of the compound is CH₂. What is the molecular formula of the compound? (R = 0.08206 L • atm/K • mol)

• A) CH₂
• B) C₂H₄
• C) C₃H₆
• D) C₄H₈
• E) C₆H₁₂

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