For a sparingly soluble salt A_pB_q,the relat | vedclass

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(A) The dissociation of the sparingly soluble salt $A_pB_q$ is given by: $A_pB_q(s) \rightleftharpoons pA^{q+}(aq) + qB^{p-}(aq)$ If $S$ is the solubi

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$L_S = S^{p + q} \cdot p^p \cdot q^q$

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(A) The dissociation of the sparingly soluble salt $A_pB_q$ is given by: $A_pB_q(s) \rightleftharpoons pA^{q+}(aq) + qB^{p-}(aq)$ If $S$ is the solubility of the salt,then the concentration of ions at equilibrium is: $[A^{q+}] = p \cdot S$ $[B^{p-}] = q \cdot S$ The solubility product $(L_S)$ is defined as: $L_S = [A^{q+}]^p [B^{p-}]^q$ Substituting the concentrations: $L_S = (p \cdot S)^p \cdot (q \cdot S)^q$ $L_S = p^p \cdot S^p \cdot q^q \cdot S^q$ $L_S = S^{p + q} \cdot p^p \cdot q^q$

For a sparingly soluble salt $A_pB_q$,the relationship of its solubility product $(L_S)$ with its solubility $(S)$ is

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