77. The French physicist Jean Perrin, observing under t

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77. The French physicist Jean Perrin, observing under the microscope the change in concentration of suspended in water (ρ = 1 g / cm3) balls Gamboge (ρ1 = 1,25 g / cm3) with a change in altitude experimentally determined Avogadro constant. Define this value if the slurry temperature T = 298 K, the radius of the balls r = 0,21 m and the distance between the two layers 30 microns Δh = the number of beads in a single layer Gamboge two times greater than the other.

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Detailed solution. Decorated in Microsoft Word 2003. (Target decided to use formula editor)


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