Equivalent weight of in a reaction where it is neutralized to is: — Redox Reactions and Volumetric Analysis Chemistry Question

💡 Solution & Explanation

$H_3PO_3$ (Phosphorous acid) is a dibasic acid. Its $n$-factor for complete neutralization to $Na_2HPO_3$ is 2. <br>Eq. Wt. = $M/2$. [1, 2]