Question

A compound gave the following data : C=57.82%,O=38.58%and H=3.6%. Its vapour density is 83.
Find its empirical formula and molecular formula.

Answer 1

The emperical formula is the chemical formula which represents the simplest whole no ratio.

molecular formula=(emperical formula)n

Emperical formula=C4H3O2

molecular formula=(C4H3O2)n

n=2

molecular formula= C8H6O4