Question

A compound contains 92.3 % carbon ratio in hydrogen.Ig the molecular mass is 7.7 . Calculate the moleculer formula
​

Answer 1

Explanation:

Let the Empirical formula be CH

x

.

So,

12+x

12

×100=92.3⟹x=1

Empirical formula =CH

Empirical formula weight =13

Molecular weight = 2×39=78

EW

MW

=

13

78

=6

Molecular formula=(Empirical formula) 6

Thus, the molecular formula of the compound is CC6H6

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