$A$ compound contains $2.34 \ g$ of nitrogen and $5.34 \ g$ of oxygen. What is the empirical formula of the compound?

$0.0833 \, mol$ of a carbohydrate with the empirical formula $CH_2O$ contains $1 \, g$ of hydrogen. What is the molecular formula of the carbohydrate?

The chemical formula of rust is:

An organic compound on analysis gave $C = 48 \,g$, $H = 8 \,g$ and $N = 56 \,g$. The volume of $1.0 \,g$ of the compound was found to be $200 \,mL$ at $NTP$. What is the molecular formula of the compound?

$A$ protein $'A'$ contains $0.30\, \%$ of glycine (molecular weight $75$). The minimum molar mass of the protein $'A'$ is $.......\, \times 10^{3} \, g\, mol^{-1}$ [nearest integer]

In a compound,$C, H,$ and $N$ are present in the weight ratio of $9:1:3.5$. If its molecular weight is $108$,then its molecular formula will be: