Answer to Question #159052 in Physics for Gideon

Question

A hydrocarbon contains 7.7% by mass of hydrogen and 92.3% by mass of carbon the relative molar mass of the compound is 78, derive the emperical formular of the compound. Name the hydrocarbons and write it's structural formular (H=1, C=12)

Answer 1

$$0.077(78)=6 =6M_H\\0.923(78)=72=6 M_C$$

Empirical formula (acetylene)

$$CH$$