Question

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A compound contains 92.3% of carbon and 7.7% of hydrogen it's molecular mass is 78u. Establish its empirical and molecular formula.
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Answer 1

Answer:

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Answer 2

Answer:

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Explanation:

Let the Empirical formula be CH x .

So, 12+x12 ×100=92.3⟹x=1

Empirical formula =CH

Empirical formula weight =13

Molecular weight = 2×39=78

EW

MW

= 1378

=6 Molecular formula=(Empirical formula) 6

Thus, the molecular formula of the compound is C 6 H 6.

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