1.

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.

Answer»

Solution :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`


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