143. Solving a chemistry problem

143. Solving a chemistry problem

3.8. In Westgren´s experiments, the following distribution of the height of the gold hydrosol particles established under the influence of gravity was obtained:
h, μm 0 50 100 200 300 400 500
The number of particles per unit volume: 1431 1053 779 408 254 148 93
Determine the average particle size of the hydrosol, if the density of the dispersed phase is 19.6 g / cm3, the temperature is 292 K.

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