2. At a potential of -0.8 V relative to a saturated calomel electrode, a solution of 5 * 10-3 M for cadmium chloride and 0.1 M for potassium chloride corresponds to a diffusion current of 50 μA. Mercury flows out at a rate of 18 drops per 1 min. The mass of 10 drops of mercury is 0.0382 g. Calculate the diffusion coefficient. What will be the current strength. if the specified capillary is replaced by another at which the drop formation time is 3.0 s and 10 drops will weigh 0.0420 g?

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