The degree of dissociation () of a weak electrolyte, is related to Van't Hoff factor () by the expression:

Question

The degree of dissociation ( $α$ ) of a weak electrolyte, $A_{x} B_{y}$ is related to Van't Hoff factor ( $i$ ) by the expression:

Smart Achievers · Accepted Answer

(1)

$\begin{matrix} A_{x} B_{y} & \to & x A^{y +} & + & y B^{x -} \\ 1 - α & x α & \begin{matrix} y α \end{matrix} \end{matrix}$

$i = 1 - α + x α + y α$

$α = \frac{i - 1}{(x + y - 1)}$

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