1. The limiting diffusion current on the polarogram recorded for 2.0 * 10-3 M Cd(II) solution against the background of 0.1 M KNO3 solution was 8.1 μA. It is known that 15 drops weighing 60 mg flow out of the capillary within 1 min. Determine the diffusion coefficient of Cd2 ions in the supporting electrolyte.

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