A sparingly soluble salt having general formula `A_xB_y` and molar solubility s is in equilibrium with its saturated solution. Derive a relationship between the solubility and solubility product for such salt.

Explanation

To derive the relationship between the solubility (s) of a sparingly soluble salt with the general formula \( A_xB_y \) and its solubility product (\( K_{sp} \)), we can follow these steps:

### Step 1: Write the Dissociation Equation
The dissociation of the salt \( A_xB_y \) in water can be represented as:
\[ A_xB_y (s) \rightleftharpoons xA^{y+} (aq) + yB^{x-} (aq) \]

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