127. Задачка по химии №012 7960

175. At what minimum pH can a mixture of cations be quantitatively separated when the solution is saturated with hydrogen sulfide (CH2S = 0.1 mol / l) and what is the concentration of the precipitated ion at this pH 1) 0.01 M NiCl2 and 0.02 M CdCl2.

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