55. Solving a chemistry problem

55. Solving a chemistry problem

14. Calculate the concentration of sodium silicate in a dissolved state in equilibrium with amorphous particles (specific surface of particles 3105 m2/kg) of silica hydrosol at 298 K. The solubility of silica in equilibrium with macrophase at the same temperature is 0.015% (mass). The density of SiO2 particles is 2.2 g/cm3, the surface tension at the interface between silica and solution is 45 mJ/m2.

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