A hydrocarbon molecule contains carbon and hydrogen atoms in equal numbers. Its molar mass is 130.18 g/mol. What is the molecular formula for the hydrocarbon? A)C₇H₇ B)C₁₂H₁₂ C)C₈H₈ D)C₁₀H₁₀ E)CH

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Quizplus · Accepted Answer

The molar mass of the hydrocarbon is 130.18 g/mol. Since the hydrocarbon contains carbon and hydrogen atoms in equal numbers, the empirical formula is CH. The molecular formula is a multiple of the empirical formula. The molar mass of the empirical formula is 13 g/mol. Therefore, the molecular formula is C10H10.

A Hydrocarbon Molecule Contains Carbon and Hydrogen Atoms in Equal