Gold can be plated out one atom in thickness and look like solid gold. If a ring has a surface area of about 6.45 cm2 and if gold atoms can be packed 9.07x1014atoms/cm2, how long would it take using your home current of 15 amps to convert a metal ring into one that looked like solid gold using Au3+?   1.9x10-4seconds   0.67 seconds   6.3x10-5seconds   0.22 seconds

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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.