An oxide of a metal (M) contains 40% by mass of oxygen. Metal (M) has atomic mass of 24. The empirical formula of the oxide is-

An oxide of metal M has 40% by mass of oxygen. Metal M has relative atomic mass of 24. The empirical formula of the oxide is:

A metallic chloride contains 20.2% by mass of metal (M). I the atomic mass of the metal be 27. what is the molecular formula of the metallic chloride?

1.25 g of a metal (M) reacts with oxygen completely to produce 1.68 g of metal oxide. The empirical formula of the metal oxide is [molar mass of M and O are 69.7 g mol^(-1)" and 16.0 g "mol^(-1) , respectively]

The oxide of a metal contains 40% of oxygen. The valency of metal is 2. What is the atomic weight of metal?

The oxide of a metal contains 40% of oxygen. The valency of metal is 2. what is the atomic weight of the metal ?

The elements A and B form a compound that contains 60% A and 40% B by mass. The atomic mass of B is twice that of A. Find the empirical formula of the compound.