39. Solving a chemistry problem

39. Solving a chemistry problem

806. Rapid coagulation of 15 ml of silver iodide sol (whose charge is negative) is observed when 2.48 ml of a 1 mol/l KNO3 solution is added to it. Based on the DLVO theory, estimate what is the minimum concentration of a K2SO4 solution for 3 ml of its solution to have a similar effect on the same volume of AgI sol.

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