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Calculate the solubility of CaF(2) in a ...

Calculate the solubility of `CaF_(2)` in a solution buffered at `pH = 3.0. K_(a)` for `HF = 6.3 xx 10^(-4)` and `K_(sp)` of `CaF_(2) = 3.45 xx 10^(-11)`.

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To calculate the solubility of \( \text{CaF}_2 \) in a solution buffered at \( \text{pH} = 3.0 \), we will follow these steps: ### Step 1: Understand the Dissociation of \( \text{CaF}_2 \) The dissociation of calcium fluoride in water can be represented as: \[ \text{CaF}_2 (s) \rightleftharpoons \text{Ca}^{2+} (aq) + 2 \text{F}^- (aq) \] Let the solubility of \( \text{CaF}_2 \) be \( x \). Therefore, at equilibrium: ...
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