Determine the transport numbers of the ions in an exactly 0.200 molal solution of copper (II) sulfate. The cell was filled with solution and electrolyzed between copper electrodes for some time. The cathode solution of the cell was found to weigh 36.434 g and contains 0.4415 g of Cu. Further the cathode in the coulometer showed an increase in weight of 0.0405 g due to deposited Ag.

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Potentiometric Titrations

Potentiometric titration is one of the important titration methods and is mainly carried out to characterize acid solutions. It follows a method similar to that of the normal titration technique, but the main difference is that there is no indicator used in the potentiometric titrations. Instead of using an indicator, electrodes are employed for monitoring the whole titration process. A scientist named Robert Behrend did the potentiometric titration for the first time, and it was done using the mercurous solution and potassium chloride.