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
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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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?
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