A compound contains 28% of nitrogen and 72% metal by mass 3 atoms of the metal combine with 2 atoms of the nitrogen. Find the atomic mass of the metal.

Explanation

Valency of metal=2 and valency of nitrogen =3
Equivalent mass of nitrogen `=(14)/(3),("Eq. mass of metal")/(14//3)=(72)/(28)`
Equivalent mass of metal=12
Atomic mass of metal `=12xx2=24`