CH 223 Chapter Guides

Chapter Guide Five: Overview | Resources | Practice

  Overview of Chapter Guide Five

Chapter 16 introduces us to electrochemistry which combines the theories of equilibrium, thermodynamics, and more to give a complete picture of a given chemical system. We shall see how the electrocell potential, E°, will dictate if a reaction can occur or not. By combining chemical species, we can make certain "product disfavored" reactions occur through the process known as electrolysis. The Nernst equation will help to understand electrochemical equilibrium under non standard conditions. We shall also explore batteries, the time capacity of electrochemical cells, and much more.

For a complete list of important concepts in Chapter 16, see the Chapter 16 Study Guide.

  Resources for Chapter Guide Five

For this module, you should read Chapter 16 in your textbook.

The following screencasts and Complete Lectures might prove useful to you as you study this chapter.

The Chapter 16 lecture notes which accompany this lesson will be helpful when going through this section. These are Web versions of the lecture notes used in the "normal" CH 223 class and should let you see what is important in this chapter. You can also view the Lecture Notes in presentation software: Keynote, PowerPoint

A variety of handouts are available from Chapter 16. Feel free to explore all of them or just the ones which give you difficulty.

Once you have mastered the concepts listed above, check out the Chapter Sixteen Concept Guide for a series of worked problems relating to this module. They will help you to ensure the mastery of the knowledge from this section.

Finally, test yourself (and get extra-credit in the bargain!) on the following chemistry concepts. If you get 9 out of 10 correct (or some multiple thereof), submit the information to receive extra credit.

  1. Writing Redox Reactions
  2. Identifying Electrode Processes
  3. Balancing Oxidation Reduction Reactions
  4. Using the Electrochemical Series
  5. Calculating Eo
  6. Relating Eo, G and K
  7. Faraday's Laws
  8. Determining n for a Redox Reaction
  9. The Nernst Equation
  10. The Nernst Equation II

  Practice the Concepts of Chapter Guide Five

Complete problem set #5 to further explore the Gibbs Free Energy and electrochemistry concepts. Problem set #5 covers several questions from Chapter 16 and Chapter 16, and it can be found here. We will discuss problems like these during recitation, so come prepared to ask and answer questions. This table of redox reactions (listed by decreasing voltage) might also prove useful this week.

For additional practice, try completing practice problem set #5 (with answers included at the end) and/orthe non-assigned problems in Chapter 16. Answers to many of those problems are listed in the back of your textbook.

If you need assistance on these problems, you have several options. You can visit the AVID / Learning Success Center located above the MHCC library on the Mt. Hood Community College campus; they have tutors available to help you with your chemistry homework. You can also contact me if you have any questions.

This sample Quiz #5 (with answers at the end) which was given during a previous year's CH 223 class will help you understand the kind of questions that will be asked on the quiz.

You can also test your mastery of the subject matter by trying the self quiz for Chapter 16. This is an ungraded quiz that you can use to gauge your comfort level with these concepts.

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