Problem: What is the molecular formula of the following compound?Empirical formula C7H4O2 (ℳ = 240.20 g/mol)

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 Molar mass of C7H4O2:

C7H4O2       7 C × 12.01 g/mol C =  98.07 g/mol           

                   4 H ×   1.01 g/mol H  =    4.04 g/mol   

                   2 O × 16.00  g/mol O =  32.00 g/mol    

                                               Total: 120.1 g/mol

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Problem Details

What is the molecular formula of the following compound?

Empirical formula C7H4O2 (ℳ = 240.20 g/mol)

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Our data indicates that this problem or a close variation was asked in Chemistry: The Molecular Nature of Matter and Change - Silberberg 8th Edition. You can also practice Chemistry: The Molecular Nature of Matter and Change - Silberberg 8th Edition practice problems.