Estimate the mean ionic activity for a 0.0155 molal solution of H3PO4 at 298 K. Assume complete dissociation. (Given A=0.0509) Is hydrogen a better reducing agent in acid or basic solution? Explain your answer.

Estimate the mean ionic activity for a 0.0155 molal solution of H3PO4 at 298 K. Assume complete dissociation. (Given A=0.0509) Is hydrogen a better reducing agent in acid or basic solution? Explain your answer.

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter18: Introduction To Electrochemistry

Section: Chapter Questions

Problem 18.15QAP

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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.

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