108. Solving a chemistry problem

108. Solving a chemistry problem

The thresholds for coagulation of electrolytes KCl, MgCl2, AlCl3 for this sol are (mmol/l): γ KCl = 50, γ MgCl2 = 0.717, γ AlCl3 = 0.003. Determine the sign of the charge of the sol particles.

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