Question

Asuming the atomic weight of a metal M to be 56,find the empirical formula of oxide captaining 70.0%of M.

Answer 1

Explanation:

Atomic weight=56,so metal is iron(fe)

Fe=70/56=1.25 =1.25/1.25=1*2=2

O=30/16=1.875=1.875/1.25=1.5*2=3

Therefore, empirical formula of the compound is fe2o3