28. Solving a chemistry problem

28. Solving a chemistry problem

4. Coagulation of arsenic trisulfide sol is caused by cations. The coagulation thresholds for electrolytes KNO3, MgCl2, AlCl3 are respectively equal to 50.0; 0.72; 0.093 mmol/l. How do the coagulating abilities of cations of different valences correlate with each other?

Additional information:

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