112. Solving a chemistry problem
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112. Solving a chemistry problem
Rapid coagulation of 75 ml of alumina sol (whose charge is positive) is observed when 4.11 ml of a 1 mol/l KCl solution is added to it. Based on the DLVO theory, estimate what is the minimum concentration of the K2Cr2O7 solution so that 1 ml of the solution has a similar effect on the same volume of the Al2O3 sol
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