Calculate the hydrogen overpotential of an iron electrode and the corrosion current of iron for pH between 2 and 8. The potential of the iron electrode at unit hydrogen concentration (pH-0), V-0.75 V vs. SCE. The Tafed slope for the hydrogen evolution reaction is b-0.12 V/decade. The exchange current density of hydrogen on iron is 10 A/cm². Assume that the corrosion potential is -0.5225 V vs. SHE.
Calculate the hydrogen overpotential of an iron electrode and the corrosion current of iron for pH between 2 and 8. The potential of the iron electrode at unit hydrogen concentration (pH-0), V-0.75 V vs. SCE. The Tafed slope for the hydrogen evolution reaction is b-0.12 V/decade. The exchange current density of hydrogen on iron is 10 A/cm². Assume that the corrosion potential is -0.5225 V vs. SHE.
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 23.14QAP
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Calculate the hydrogen overpotential of an iron electrode and the corrosion current of iron for pH between 2 and 8. The potential of the iron electrode at unit hydrogen concentration (pH-0), V-0.75 V vs. SCE. The Tafed slope for the hydrogen evolution reaction is b-0.12 V/decade. The exchange current density of hydrogen on iron is 10 A/cm². Assume that the corrosion potential is -0.5225 V vs. SHE.
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