32. Решение задачки по химии №423

11. What are the concentrations of electrolytes if 10.0 ml of the Prussian blue sol K4[Fe(CN)6], obtained as a result of the reaction:
4FeCl3 3K4[Fe(CN)6]=Fe4[Fe(CN)6] 12KCl
coagulates when the following volumes of electrolyte solutions with the coagulation threshold indicated in the table are added to it:
Electrolyte KCl MgCl2 Al(NO3)3
V, ml 20.0 8.0 3.0
y, mol/l 10.0 0.16 0.015
Determine the sign of the charge of the colloidal particle. Write the expected formula of the micelle.

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