41. Solving a chemistry problem
8.15 A PbSO4 sol was prepared by mixing equal volumes of 0.003 N. Pb(NO3)2 solution and 0.008 N. NaI solution. Determine the sign of the charge of the sol particles. Write the formula for a micelle. Determine the type of coagulation when a solution of Pb(NO3)2 and CH3COONa is added to the sol.
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