Question

Please help me solve it.
A hydrocarbon contains 7.7% by mass of hydrogen. If the relative molecular mass of the compound is 78, calculate the empirical and molecular formulae of the compound.
With steps too

Answer 1

The molecular mass of an organic compound is 78 its empirical formula is CH the molecular formula is

carbon= 92.4 grams and hydrogen= 7.6 grams. Finding the simple ratios, C=7.7/7.6= 1 (approx) and H= 7.6/7.6= 1 . Therefore empirical formula is CH. Multiply 'n' to empirical formula, Therefore molecular formula is C6H6 (benzene).

Hope this helps.

Pls mark me Brainliest.