86. Calculate the electrophoretic mobility of strontium carbonate particles in water at an electric field strength of 800 V/m if the zeta potential determined from the electrophoresis rate is 25 mV at 25 °C (viscosity 8.903*10-4 Pa*s, relative permittivity 78.36). Assume a spherical shape of particles with a radius of 300 nm, and the ionic strength of the solution is consistent with the solubility of SrCO3 in water 3.05*10-5 mol/l.
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