126. Solving a chemistry problem
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126. Solving a chemistry problem
99. The average square of the shift in the Brownian motion of gold hydrosol nanoparticles for 4 s is 6.89 * 10-11 m2. Determine the particle diameter if the viscosity of the dispersion medium is 1.10 * 10-3 Pa * s at a temperature of 290 K.
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