An oxide of sulfur contains $50\%$ sulfur. What is its empirical formula?

Which of the following is the formula for calcium chlorite?

Empirical formula of a compound is $CH_2O$ and its vapour density is $30$. The molecular formula of the compound is:

An organic compound on analysis gives the following data: $C = 57.82 \%$,$H = 3.6 \%$ and the rest is oxygen. Its vapour density is $83$. Calculate its molecular formula.

An organic compound containing $C$,$H$,and $O$ has $13.13 \% H$,$52.14 \% C$,and $34.73 \% O$. Its molar mass is $46.068 \ g/mol$. What are its empirical and molecular formulae?

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