96. The diffusion coefficient of spherical nanoparticles of silica hydrosol is 1.6 * 10-6 m2 / day, the viscosity of the medium is 1.00 * 10-3 Pa s, the temperature is 20 ° C, the silica density is 2.7 g / cm3. Determine the partial concentration of silica sol if the mass concentration is 0.500 g/l.

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