A metal oxide contains 60% metal. The
equivalent mass of the metal is
Answers
Answered by
2
Let us consider, atomic weight of metal is M
atomic weight of oxide is 16g/mol.
Let valency of metal is x
then, chemical formula =
so, molecular weight = (2M + 16x) g/mol
a/c to question,
mass percentage of metal = 2M/(2M + 16x) × 100
or, 0.6 = 2M/(2M + 16x)
or, 0.6 = M/(M + 8x)
or, 0.6M + 4.8x = M
or, 4.8x = 0.4M
or, M = 12x ......(1)
so, equivalent mass of metal = Molecular mass/valency
= M/x
= 12x/x = 12
Similar questions