Question

Equivalent weight of Ca(OH)2 ?

Answer 1

heyy simran ur answer............

The calcium hydroxide releases Ca2+ and two OH1- ions. The equivalent weight of calcium hydroxide is 1/2 he mass of a mol of calcium hydroxide. 1 mol Ca(OH)2 = 74 grams Ca(OH)2 ; 1 equivalent Ca(OH)2 = 37 grams Ca(OH)2......

hope it will help u...............@kundan

Answer 2

Answer: The equivalent mass of $Ca(OH)_2$ is 37 g/eq.

Explanation:

Equivalent weight of a base is defined as the molecular mass of that divided by the number of displaceable hydroxide ions or acidity of base. The formula used to calculate this is:

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

Equation for the ionization of given base follows:

$Ca(OH)_2(aq.)\rightarrow Ca^{2+}(aq.)+2OH^-(aq.)$

We are given:

Equivalent weight of compound = 74 u

Valency = 2

Putting values in above equation, we get:

$\text{Equivalent mass of }Ca(OH)_2=\frac{74}{2}\\\\\text{Equivalent mass of }Ca(OH)_2=37g/eq.$

Hence, the equivalent mass of $Ca(OH)_2$ is 37 g/eq.