Answer to Question #190001 in General Chemistry for Tyler Drotning

Question #190001

The empirical formula of an unknown compound containing only carbon hydrogen and oxygen was found to be CH2O. In a separate experiment the molar mass of the molecule was determined to be 60 g/mol. What is the molecular formula of the compound?


Answer will be in C#H#O#


1
Expert's answer
2021-05-10T01:20:59-0400

Empirical formula = CH2O

Empirical formula mass =

12g/mol + 2g/mol + 16g/mol = 30g/mol


MolecularformulamassEmpiricalformulamass\frac{Molecular formula mass}{Empirical formula mass} = 60g/mol30g/mol\frac{60g/mol}{30g/mol} = 2


Molecular formula = 2 × CH2O = C2H4O2


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