54. Solving a chemistry problem
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54. Solving a chemistry problem
810. Rapid coagulation of 25 ml of gold sol (whose charge is negative) is observed when 1.26 ml of a 0.5 mol/l NaCl solution is added to it. Based on the DLVO theory, estimate what is the minimum concentration of the MgSO4 solution for 1 ml of its solution to have a similar effect on the same volume of the Au sol.
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