The empirical formula of a compound is $CH$. Its molecular weight is $78$. The molecular formula of the compound will be

The molecular formula of the chloride of a metal $M$ is $MCl_3$. The formula of its carbonate would be:

What is the mass percentage of carbon in urea (in $\%$)? (molar mass of urea $= 60 \ g \ mol^{-1}$)

What is the percentage composition of $C$ in methanoic anhydride?

An organic compound on analysis gives the following composition: $C = 54.5\%, O = 36.4\%, H = 9.1\%$. The empirical formula of the compound is ..

When $0.01 \ mol$ of an organic compound containing $60 \%$ carbon was burnt completely,$4.4 \ g$ of $CO_2$ was produced. The molar mass of the compound is $......... \ g \ mol^{-1}$ (Nearest integer).