Explanation The advantages of the hanging mercury drop electrode compared with platinum or carbon electrodes are- The hanging mercury drop electrode has relatively large negative potential range. The mercury electrode is also responsible for the reduction of many ions to amalgams on its surface. The hanging mercury drop electrode has ability to produce a fresh surface which is important for the measurement of the current in voltammetry. It also make surface free from irregularities. The hanging mercury drop electrode is also responsible for the stability of large current fluctuations...

7th Edition

ISBN: 9781305577213

Author: Douglas A. Skoog, F. James Holler, Stanley R. Crouch

Publisher: Cengage Learning

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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…

Question

Chapter 25, Problem 25.8QAP

Interpretation Introduction

Interpretation:

The advantages and disadvantages of the hanging mercury drop electrode compared with platinum or carbon electrodes are to be stated.

Concept introduction:

The hanging mercury drop electrode is a working electrode which can take variety of shapes and forms. The conductors like noble metals such as gold and platinum are used for the manufacturing of working electrode.

Expert Solution & Answer

Chapter 25 Solutions

Principles of Instrumental Analysis

Ch. 25 - Prob. 25.1QAP Ch. 25 - Prob. 25.2QAP Ch. 25 - Prob. 25.3QAP Ch. 25 - Prob. 25.4QAP Ch. 25 - Prob. 25.5QAP Ch. 25 - Prob. 25.6QAP Ch. 25 - Prob. 25.7QAP Ch. 25 - Prob. 25.8QAP Ch. 25 - Prob. 25.9QAP Ch. 25 - Quinone undergoes a reversible reduction at a...

Ch. 25 - Prob. 25.11QAP Ch. 25 - Prob. 25.12QAP Ch. 25 - Prob. 25.13QAP Ch. 25 - Prob. 25.14QAP Ch. 25 - Prob. 25.15QAP Ch. 25 - Prob. 25.16QAP Ch. 25 - Prob. 25.17QAP

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Calculate the minimum difference in standard electrode potentials needed to lower the concentration of the metal M1 to 2.00 10-4 M ¡n a solution that is 1.00 10-1 M in the less-reducible metal M2 where (a) M2 is univalent and M1 is divalent. (b) M2 and M1 are both divalent, (c) M2 is trivalent and M1 is univalent, (d) M2is divalent and M1 is univalent, (e) M2 is divalent and M1 ¡s trivalent.
If the cell potential is proportional to work and the standard reduction potential for the hydrogen ion is zero, does this mean that the reduction of the hydrogen ion requires no work?

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