u = (2)²)id (spheriDateчисSubjectMonthYear.583.9 Discuss the mechanism by which the potential of a platinum electrode becomes poised by immer-sion into a solution of Fe(II) and Fe(III) in 1 M HCl. Approximately how much charge is required toshift the electrode potential by 100 mV? Why does the potential become uncertain at low concentra-tions of Fe(II) and Fe(III), even if the ratio of their concentrations is held near unity? Does this ex-perimental fact reflect thermodynamic considerations? How well do your answers to these issuesapply to the establishment of potential at an ion-selective electrode?فصل دوممراجع استاد

mechanism by which the potential of a platinum elect solution of Fe(II) and Fe(III) in 1 M HCl. Approximatel ctrode potential by 100 mV? Why does the potential be II) and Fe(III), even if the ratio of their concentrations fact reflect thermodynamic considerations? How well ion selective electrode

mechanism by which the potential of a platinum elect solution of Fe(II) and Fe(III) in 1 M HCl. Approximatel ctrode potential by 100 mV? Why does the potential be II) and Fe(III), even if the ratio of their concentrations fact reflect thermodynamic considerations? How well ion selective electrode

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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Question

u = (2)²)
id (spheri
Date
чис
Subject
Month
Year.
58
3.9 Discuss the mechanism by which the potential of a platinum electrode becomes poised by immer-
sion into a solution of Fe(II) and Fe(III) in 1 M HCl. Approximately how much charge is required to
shift the electrode potential by 100 mV? Why does the potential become uncertain at low concentra-
tions of Fe(II) and Fe(III), even if the ratio of their concentrations is held near unity? Does this ex-
perimental fact reflect thermodynamic considerations? How well do your answers to these issues
apply to the establishment of potential at an ion-selective electrode?
فصل دوم
مراجع استاد

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