empirical formula of an organic compound is H2O its vapour density is 45 the molecular formula of the compound is
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Molecular weight(M.Wt)=2×Vapour
density
M.Wt=2×45=90
Since , Mass of H is 1 and mass of O is 16
Empirical weight(E.Wt)=2*(1)+16
=2+16=18
n =M.Wt/E.Wt
n =90/18=5
Molecular Formula= n * Empirical
Formula
Molecular Formula= 5*H2O
= H10O5
density
M.Wt=2×45=90
Since , Mass of H is 1 and mass of O is 16
Empirical weight(E.Wt)=2*(1)+16
=2+16=18
n =M.Wt/E.Wt
n =90/18=5
Molecular Formula= n * Empirical
Formula
Molecular Formula= 5*H2O
= H10O5
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