What is the molecular formula of a component whose molar mass is 88.0 and whose percent composted is 9.1

The molecular formula : C₄H₈O₂

Maybe a compound is 54.5% carbon, 9.1% hydrogen and 36.4% oxygen,so :

mol C :

mol H :

mol O :

Divide by 2.28(the smallest ratio) :

C H : O =

The empirical formula : C₂H₄O

(The empirical formula)n=molecular formula

(2.12+4.1+16)n=88

(44)n=88⇒n=2

b is the correct

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