31. Calculate the thickness of the diffuse layer of particles of the dispersed phase at 293K in an aqueous solution of AlCl3 with a concentration of 10 mg/l. The relative permittivity of the solution is 79.0.
Directions: Determine the ionic strength of the solution using the formula I=1/2Ecizi2
where c is the concentration in mol/m3; z is the charge of the ion.
Electrical constant ε0=8.85*10-12 F/m, Faraday constant F=96500 C/mol.

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