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Ka value for HOCI hArr H^(+) + OCI^(-) ...

`K_a` value for `HOCI hArr H^(+) + OCI^(-)` is `2.5 xx 10^(-5)`. Determine the pH of 0.08M aqueous hypochlorous acid solution.

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To determine the pH of a 0.08 M aqueous hypochlorous acid (HOCl) solution given that the \( K_a \) value is \( 2.5 \times 10^{-5} \), we can follow these steps: ### Step 1: Write the dissociation equation The dissociation of hypochlorous acid in water can be represented as: \[ \text{HOCl} \rightleftharpoons \text{H}^+ + \text{OCl}^- \] ### Step 2: Set up the expression for \( K_a \) The expression for the acid dissociation constant \( K_a \) is given by: ...
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