46. Solving a chemistry problem

12. Determine the diameter of aerosol particles using the result of the study by the method of flow ultramicroscopy: 87 aerosol particles (smoke from open-hearth furnaces) were counted in a volume of 2.2 * 10–2 mm3. The aerosol concentration is 110–4 kg/m3, the density of the dispersed phase is 2 g/cm3, the particle shape is spherical.