Addition of conc. HCl to saturated BaCl_2 sol | vedclass

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(B) The solubility equilibrium for $BaCl_2$ is represented as: $BaCl_2(s) \rightleftharpoons Ba^{2+}(aq) + 2Cl^{-}(aq)$.When concentrated $HCl$ is add

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Of common-ion effect

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(B) The solubility equilibrium for $BaCl_2$ is represented as: $BaCl_2(s) \rightleftharpoons Ba^{2+}(aq) + 2Cl^{-}(aq)$.When concentrated $HCl$ is added,it provides a high concentration of $Cl^{-}$ ions,which is a common ion.According to Le Chatelier's principle,the increase in the concentration of $Cl^{-}$ ions shifts the equilibrium to the left to minimize the stress,resulting in the precipitation of $BaCl_2$.This phenomenon is known as the common-ion effect.

Addition of conc. $HCl$ to saturated $BaCl_2$ solution precipitates $BaCl_2$; because

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