the empirical formula of a compound is CH2 N2 and its molecular mass is 126.0. what is the molecular formula of the compound

Step 1: Represent a molecular formula.

Step 2: Calculate the empirical mass.

empirical mass = (12.0 g/mol × 1) + (1.0 g/mol × 2) + (14.0 g/mol × 2)

empirical mass = 42.0 g/mol

Step 3: Divide the molecular mass by the empirical mass.

Step 4: Multiply the subscripts by the value of n to obtain the molecular formula.

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