Question: Find the mass of a mole of colloid particles if during their centrifuging with an angular velocity w about a vertical axis the concentration of

Find the mass of a mole of colloid particles if during their centrifuging with an angular velocity w about a vertical axis the concentration of the particles at the distance r1 from the rotation axis is η times greater than that at the distance r2 (in the same horizontal plane). The densities of the particles and the solvent are equal to p and to Po respectively.

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