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What (H(3)O^(+)) must be maintained in a...

What `(H_(3)O^(+))` must be maintained in a saturated `H_(2)S` solution to precipitate `Pb^(2+)` , but not `Zn^(2+)` from a solution in which each ion is present at a concetration of `0.01 M ? (K_(SP)`for `H_(2)S= 1.1xx10^(-22), K_(SP)`for `ZnS=1.0xx10^(-21))`

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To solve the problem of determining the concentration of \( \text{H}_3\text{O}^+ \) (or \( \text{H}^+ \)) that must be maintained in a saturated \( \text{H}_2\text{S} \) solution to precipitate \( \text{Pb}^{2+} \) but not \( \text{Zn}^{2+} \), we can follow these steps: ### Step 1: Understand the solubility products The solubility products (\( K_{sp} \)) for the sulfides are given as: - For \( \text{H}_2\text{S} \): \( K_{sp} = 1.1 \times 10^{-22} \) - For \( \text{ZnS} \): \( K_{sp} = 1.0 \times 10^{-21} \) ### Step 2: Set up the conditions for precipitation ...
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