5. The process of electrooxidation of copper deposits from the surface of a mercury-film electrode was studied depending on the speed of rotation of the electrode. The following data has been received.
Ipa, nA 5.540 7.83 9.58 11.07 12.38
, rpm
200 400 600 800 1000



Based on the experimental data, plot the dependence of Ipa on √w. Using the Levich equation, calculate the diffusion coefficient of Cu2 ions in solution. The electrode area is 0.3 cm2, CCu2 =2 10–10 mol/cm3.

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