112. Solving a chemistry problem

112. Solving a chemistry problem

Rapid coagulation of 10 ml of silver iodide sol (whose charge is negative) is observed when 1.65 ml of a 1 mol/l KNO3 solution is added to it. Based on the DLVO theory, estimate the minimum concentration of the Ca(NO3)3 solution for 1 ml of its solution to have a similar effect on the same volume of the AgI sol.

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