The molecular mass of butyric acid was determined by experiment to be 88 gmol−1. What is the molecular formula?
Empirical formula=.C2H4O
A
C4H8O2
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B
C2H4O
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C
CH4O
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D
C2H4O2
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Solution
The correct option is AC4H8O2 Empirical formula mass =44
Molecular mass =88
we know, Molecular massEmpirical mass=8844=2 ∴Molecular formula =Empirical formula×n=C4H8O2