Question

How to calculate equivalent weight of potassium carbonate?

Answer 1

Potassium carbonate (K2CO3) is a white salt, soluble in water (insoluble in ethanol) which forms a strongly alkaline solution. It can be made as the product of potassium hydroxide's absorbent reaction with carbon dioxide. It is deliquescent, often appearing a damp or wet solid.

Answer 2

The equivalent weight of potassium carbonate is 69 grams

Explanation:

Equivalent weight is calculated by dividing the molecular weight by n factor.  ${\text{Equivalent weight}}=\frac{\text{Molecular weight}}{n}$

n= total positive or negative charge for salts, For $K_2CO_3$ , n = 2 

$K_2CO_3\rightarrow 2K^++CO_3^{2-}$

As $K_2CO_3$ dissociates to give 2 $K^+$ and thus it has acidity of 1.

${\text{Equivalent weight}}=\frac{138g}{2}=69g$

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