Question

Equivalent weight of Co3--

Answer 1

Equivalent weight is nothing but molecular weight divided by the n- factor.

For Carbonate anion, n-factor=2

Hence equivalent weight= 60/2
= 30

Answer 2

Answer: 30 g

Explanation:

Equivalent weight is calculated by dividing the molecular weight by n factor.  

${\text{Equivalent weight}}=\frac{\text{Molecular weight}}{n}$

where n = acidity ,for bases  

n= basicity, for acids

n= valency, for elements

n= cationic charge , for compounds

n = charge for charged species

${\text{Equivalent weight}}=\frac{\text{Molecular weight}}{Charge}$

For $CO_3^{2-}$:

As $CO_3^{2-}$ has -2 charge

${\text{Equivalent weight}}=\frac{60}{2}=30g$

Thus Equivalent weight of $CO_3^{2-}$  is 30 g.