If the measured membrane potential equals the value calculated using the Nernst equation then a. There is a net efflux (to the outside) of that ion b. There will be no net movement of that ion. c. There is an ionic current across the membrane.

If the measured membrane potential equals the value calculated using the Nernst equation then a. There is a net efflux (to the outside) of that ion b. There will be no net movement of that ion. c. There is an ionic current across the membrane.

Principles of Instrumental Analysis

7th Edition

ISBN:9781305577213

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

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

Chapter23: Potentiometry

Section: Chapter Questions

Problem 23.7QAP

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Concept explainers

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.

Question

If the measured membrane potential equals the value calculated using the Nernst equation then

There is a net efflux (to the outside) of that ion

There will be no net movement of that ion.

There is an ionic current across the membrane.

There is a net influx (to the inside) of that ion

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