In which of the following solutions would solid AgCl be expected to be the least soluble at 25°C? A) 0.1 M HCl B) 0.1 M KCl C) 0.1 M BaCl₂ D) 0.1 M NH₄NO₃

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Quizplus · Accepted Answer

The solubility of AgCl is expected to be the least in a solution containing a common ion, i.e. in a solution with high concentration of chloride ions. In options A, B and D, there is a high concentration of chloride ions, which would increase the solubility of AgCl. However, in option C, there is a high concentration of Ba₂ 2+ ions which would decrease the solubility of AgCl due to the common ion effect. Therefore, option C is the best choice for the least soluble solution.

In Which of the Following Solutions Would Solid AgCl