A compound of magnesium contains 21.9% magnesium, 27.8% phosphorus and 50.3% oxygen. What will be the simplest formula of the compound?

A compound contains 34.8% Oxygen, 52.2% carbon and 13.0% Hydrogen. What is the empirical formula of the compound ?

A compound contains 34.8% Oxygen, 52.2% carbon and 13.0% Hydrogen. What is the empirical formula of the compound ?

An organic compound contains 40% carbon, 6.67% hydrogen and 53.33% oxygen by mass. What is the molecular formula of the compound if its molecular mass is 180?

A phosphorus oxide has 43.6% phosphorus. The empirical formula of the compound is

An organic compound contains 49.3% carbon, 6.84% hydrogen and 43.86% of oxygen and its vapour density is 73 . Molecular formula of the compound is