If the oxides of a metal contain 78.7% and 64.5% of oxygen and if the formual of the first oxides is MO, find the formula of other oxide, the ratio of oxygen in two oxides is 1:3.

Find the oxidation state of oxygen in OF_2

Formula of the oxide of a metal M is MO. The formula of its phosphate is

An oxide of nitrogen contains 25.9% of nitrogen. What is its empirical formula

A gaseous oxide contains 30.4% of nitrogen, one molecule of which contains one nitrogen atom. The density of the oxide relative to oxygen is

Write the formula of the compound in which the metal is in +7 oxidation state.

The valency of iron (Fe) is 3 and oxygen (0) is 2. Write the chemical formula of iron oxide

Copper forms two oxides . For the same amount of copper, twice as much oxygen was used to form first oxide than to form second one. What is the ratio of the valencies of copper in first and second oxides ?

In a metal oxide the oxide ions are arranged in hexagonal close packing and metal ion occupy 2//3rd of the octahedral voids. The formula of the oxide is

The molecular formula of the oxide of iron in which mass percentage of iron is 69.9