125. Задачка по химии №012 523

1.20 The radius of spherical particles of oil mist aerosol, determined by in-line ultramicroscopy, is 115 nm. Calculate the number of fog particles in a volume of 1.5 m3 at an aerosol concentration of 21.10-6 kg/m3 and a density of 0.92 g/cm3. Determine the total surface.

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