Question

a bivalent metal has the equivalent weight 12.the molecular weight of its oxide will be

Answer 1

Eq weight=12 molecular weight=12*valency factor=12*2=24u As it is bivalent metal its valency factor is 2 and its oxide is XO where X is that bivalent metal 

Answer 2

Answer: The molecular weight of its oxide will be 24 u.

Explanation:

Equivalent weight of a compound is defined as the molecular mass of that divided by its valency. The formula used to calculate this is:

$\text{Equivalent weight}=\frac{\text{Molecular mass of the substance}}{\text{Valency}}$

We are given:

Equivalent weight of compound = 12 u

Valency = 2 (bivalent metal)

Putting values in above equation, we get:

$12u=\frac{\text{Molecular mass of compound}}{2}\\\\\text{Molecular mass of compound}=24u$

Hence, the molecular weight of its oxide will be 24 u.