00800 G of a Compound with the Empirical Formula C₂H₂N

question 108

Multiple Choice

0.0800 g of a compound with the empirical formula C₂H₂N is dissolved in 10.00 g benzene.The resulting solution freezes at 4.99 °C.Benzene freezes at 5.48 °C and has a freezing point depression constant of K_f = 4.90 °C/m.What is the molecular formula of the compound?

• A)C₃H₂N
• B)C₃H₃N
• C)C₄H₄N₂
• D)C₆H₆N₃
• E)C₈H₈N₄

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