Question Analysis
This question tests the student's ability to determine the molecular formula from the empirical formula and the given molar mass.
Key Concept Explanation
The relationship between the empirical formula and the molecular formula is given by the equation: molar mass of the molecular formula = n × (molar mass of the empirical formula), where n is a positive integer.
Step-by-step Solution
1. Calculate the molar mass of the empirical formula C₃H₄O: 3 × 12.01 g/mol (C) + 4 × 1.008 g/mol (H) + 16.00 g/mol (O) = 56.062 g/mol.
2. Determine the value of n: n = molar mass of the molecular formula / molar mass of the empirical formula = 240 g/mol / 56.062...
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