Chemistry
If the empirical formula of a compound is CH and it has a vapour density of 13, find the molecular formula of the compound.
[C = 12, H = 1]
Stoichiometry
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Answer
Empirical formula is CH
Empirical formula weight = 12 + 1 = 13
Vapour density (V.D.) = 13
Molecular weight = 2 x V.D. = 2 x 13
∴ Molecular formula = n[E.F.] = 2[CH] = C2H2
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