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(3) A nitrate -selective electrode and a reference electrode were dipped into a solution of nitrate with an activity of 1.00 x10³M, and the potential of the nitrate selective electrode was found to be -22.4 mV. The same electrode couple was then dipped into a solution containing nitrate and chloride each of which had an activity of 1.00 x 10³M. The potential of the nitrate- selective electrode in this solution was -124.8 mV. Th

(3) A nitrate -selective electrode and a reference electrode were dipped into a solution of nitrate with an activity of 1.00 x10³M, and the potential of the nitrate selective electrode was found to be -22.4 mV. The same electrode couple was then dipped into a solution containing nitrate and chloride each of which had an activity of 1.00 x 10³M. The potential of the nitrate- selective electrode in this solution was -124.8 mV. Th

Principles of Instrumental Analysis
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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(3) A nitrate -selective electrode and a reference electrode were dipped into a solution of nitrate with an activity of 1.00 x10 ³M, and the potential of the nitrate selective electrode was found to be -22.4 mV. The same electrode couple was then dipped into a solution containing nitrate and chloride each of which had an activity of 1.00 x 10³M. The potential of the nitrate- selective electrode in this solution was -124.8 mV. Th temperatures of both solutions were 25°C. Calculate the selectivity coefficient of the nitrate -selective electrode for chloride.
Transcribed Image Text:(3) A nitrate -selective electrode and a reference electrode were dipped into a solution of nitrate with an activity of 1.00 x10 ³M, and the potential of the nitrate selective electrode was found to be -22.4 mV. The same electrode couple was then dipped into a solution containing nitrate and chloride each of which had an activity of 1.00 x 10³M. The potential of the nitrate- selective electrode in this solution was -124.8 mV. Th temperatures of both solutions were 25°C. Calculate the selectivity coefficient of the nitrate -selective electrode for chloride.
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