63 Задачка по химии №06 325

142. Waste solutions from the production of photographic materials contain colloidal silver in the form of halides. Calculate the consumption of Al2(SO4)3 per 250 m3 of wastewater, assuming that the sign of the electrical charges of colloidal particles is positive. The coagulation threshold (in mol/m3) for monovalent ions is 142; for divalent - 2.43; for trivalent - 0.068.

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