1. Sol of silver iodide AgI produced in excess of a solution of potassium iodide. Determine the charge of the particles in obtained sol, write the formula of its micelles and specify which of the electrolyte: potassium chloride, barium nitrate or aluminum sulfate - will have the greatest capacity for coagulating the resulting sol.

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4 декабря, 16:51

1. Sol of silver iodide AgI produced in excess of a solution of potassium iodide. Determine the charge of the particles in obtained sol, write the formula of its micelles and specify which of the electrolyte: potassium chloride, barium nitrate or aluminum sulfate - will have the greatest capacity for coagulating the resulting sol.

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Артема · Answer 1

AgNO₃ + KI (изб.) = AgI + KNO₃

{m[AgI]nI⁻ (n-x) K⁺}⁻ˣxK⁺ мицелла золя

I⁻ - ПОИ

для отрицательно заряженной частицы золя наиболее сильным коагулянтом является катион с наибольшей валентностью, т. е. Al³⁺ (раствор Al₂ (SO₄) ₃)