139. Задачка по химии №013 922

Using a nephelometer, experimental data were obtained at the same intensity of the scattered light of the fluxes at the height of the investigated sol h1 = 48.5 mm and h2 = 12.6 mm for a standard sol with a particle diameter dcm. = 19.4 * 10 ^ -10 m. Calculate the radius investigated sol.

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