Question

What is the equivalent weight of feso4. (NH4) 2SO2

Answer 1

Equivalent weight of $\bold{FeSO_{4}(NH_{4})_{2}SO_{2}}$ is 71 grams.

Step by step explanation:

Gram equivalent weight:

The ration of atomic weight or molecular weight of compound to its valence.

The formula of gram equivalent weight is as follows.

$\bold{Gram\,equivalent\,weight=\frac{Atomic\,weight}{Valence}}$

The dissociation of given compound is as follows.

$\bold{FeSO_{4}.(NH_{4})_{2}SO_{4}\rightarrow Fe^{2+}+2SO_{4}^{2-}+2NH_{4}^{+}}$

Valence = Total positive charges or negative charges = 4

$\bold{FeSO_{4}.(NH_{4})_{2}SO_{4} =284 g/mol}$(molar mass)

Substitute these values in gram equivalent formula.

$\bold{Gramquivalent\,weight=\frac{284}{4}=71g}$

Therefore, gram equivalent weight of given salt is 71 g.

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