An Unknown Gas Contains 85

question 14

Multiple Choice

An unknown gas contains 85.6% C and 14.4% H.At 0.455 atm and 425 K,the gas has a density of 0.549 g/L.What is the molecular formula of the gas?

• A) CH₄
• B) C₂H₄
• C) C₃H₆
• D) C₄H₆
• E) C₄H₈

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