61. Solving a chemistry problem

61. Solving a chemistry problem

93. Determine the mass concentration of SiO2 hydrosol if its viscosity is 1.1 * 10-3 Pa•s. The density of SiO2 is 2.7 g/cm³.
Note
1. Sol particles are spherical (particle shape factor α = 2.5);
2. The dispersion medium has a viscosity of 1*10-3 Pa•s and a density of 1 g/cm3.

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