Question

how to find the value of gram equivalent weight of one element
ex- Cr in CrCl3, in this find the gram equivalent of only chromium​

Answer 1

The equivalent weight of Cr in the following reaction is

Cr

+6

+3e

−

→Cr

+3

(Let M be the molecular weight of Chromium)

A

M

B

6

M

C

2

M

D

3

M

Answer

n-factor for the reaction below is 3 as three moles of electrons are involved in the reaction.

Cr

+6

+3e

−

→Cr

+3

So, the equivalent weight = =

n−factor

Molecular Weight

=

3

M