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Redox
Reactions and Processes - II
pe-pH (Eh-pH) diagrams
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| Overview |
| Eh-pH
(pe-pH) diagrams are a type of phase diagram. These diagrams depict the
relationships among minerals and aqueous species as a function of pH and
redox conditions. This week will be entirely devoted to learning how to
construct and interpret these diagrams. The principles involved are
similar to those involved in the calculation of activity-activity diagrams
which we learned how to construct in Week 6. In the lecture material,
construction of four different pe-pH diagrams is illustrated, and a fifth
example is given in the solutions to the problems in Kehew. After careful
study of these five examples, you should be able to draw almost any pe-pH
diagram. |
| Objectives |
 | Learn to calculate and interpret pe-pH
(Eh-pH) diagrams. |
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| Learning
Resources |
| Read: Chapter 5 (pp.
143-158) in Kehew (2001)
For each of the Lectures choose the
option(s) that best fits your needs |
| Lecture 9a |
Lecture 9b |
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The following is a PDF version of the PowerPoint notes
for all Week 9 lectures with annotations.
PDF
version of lecture notes
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| Solutions
to Example Problems in Text |
| Problem 4 |
Problem 5 |
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| The following is a
PDF version of the solutions to problems 4-5 in Chapter 5 of Kehew (2001)
Chapter
5 (Problems 4-5) answers |
| Homework |
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| Homework
Answers |
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