128. Solving a chemistry problem

128. Solving a chemistry problem

Calculate the osmotic pressure of the SiO2 hydrosol (w=30%) at 293 K if the specific surface area of the particles is 2.7*105 m2/kg. The density of the hydrosol particles is 2.2 g/cm3, the density of the dispersed medium is 1.15 g/cm3.

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