Question

Equivalent weight of Fe2S3 in the reaction
Fe2S3+5O2=2FeSO4+SO2

Answer 1

Answer: -

Molecular weight of Fe₂S₃ = 55.845 x 2 + 32.065 x 3

= 207.9 g

In Fe₂S₃ the oxidation state of S is -2.

In FeS0₄ the oxidation state of S is +6

In SO₂ the oxidation state of S is +4.

n factor = Total number of electrons lost or gained from each.

= 2 x 3 + 2 x 6 + 1 x 4

= 22

Equivalent weight = molecular weight / n factor

= 207.9 / 22

= 9.45 g