The percentage of oxygen in a metallic oxide of a bivalent metal is 20.1%. The molecular weight of the compound is 79.5. Write the molecular formular of the compound, considering the symbol ofthe metal as M and find out the atomic weight of the metal.

The percentage of oxygen in a metallic oxide of a bivalent metal is 20

1.	The percentage of oxygen in a metallic oxide of a bivalent metal is 20.1%. The molecular weight of the compound is 79.5. Write the molecular formular of the compound, considering the symbol ofthe metal as M and find out the atomic weight of the metal.
Answer» Solution :(i) calculate the number of atoms of oxygen present in the compound (ii) calculation of the number of atoms of oxygen present in one MOLECULE of themetallic oxide from the percentage of oxygen GIVEN (III) DETERMINATION OFTHE formula of the compound (iv) calculation of atomic weight of the metal (v) `63.5`