1 x 14 The table shows the value of the activity coefficient of Ca²+ at different values of ionic strength. nterpolate the values in the table to find the activity coefficient of Ca²+ at p=0.025 M. Ionic strength (u, M) Activity coefficient, yCa²+ 0.001 wasanit 0.746 0.604 0.656 0.714 0.005 0.01 0.05 0.1 0.870 0.749 0.675 0.485 0.405 1762 02 1 ND 01 () (0) 10,02 oma o.13. vomoll d simov ada griego to svods orb to smold

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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.