Question

Find the equivalent weight of fe2(so4)3

Answer 1

Answer:

1.calculation of oxidation state of Fe in compound..

make a criss cross

Fe = 3

SO4 = 2

It means Fe is 3+ in this compound

Other way is

2X + 3(—2) = 0

then X = +3

2. Molar mass calculation of compound

2(59) + 3[32+ 4(16)] = 406 g

then equivalent weight = 406/3 = 135.333g