A compound has an empirical formula of CH₂O and a relative molecular mass of 60. Find its molecular formula.
1: Find the relative empirical mass of the empirical formula-CH₂O=12+1+1+16=30. 2: Divide the relative molecular mass by the relative empirical mass-60÷30=2. The molecular formula is twice the empirical formula, C₂H₄O₂.
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