5. Silver iodide sol was obtained by pouring equal volumes of a 0.008 M solution of potassium iodide and a 0.01 M solution of silver nitrate. Which electrolyte MgSO4 or K3[Fe(CN)6] will have a higher coagulation threshold for a given sol and why? Determine the sign of the charge of the colloidal particle. Write the formula of the micelle.

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