CH 222 Chapter Guides

Chapter Guide One: Overview | Resources | Practice

  Overview of Chapter Guide One

The goal of this assignment will be to show the true power of a chemical equation.

Chapter 7 (mostly sections 7.3-7.5, but you should be familiar with the first sections too) introduces us to the concept of stoichiometry, the study of amount with regards to chemistry. We will use our previously studied grams to moles conversions (with molar mass) to determine amounts of reactants needed to create so much product, or how an amount of product can be related back to the amount of reactant necessary for the reaction to commence, and much more. This is a powerful chapter: chemists get paid through their ability to control the chemical reaction, and these secrets will be unveiled for you in these pages of reading.

For a complete list of important concepts, see the Chapter 7 Study Guide.

  Resources for Chapter Guide One

For this module, you should read Chapter 7 in your textbook. Focus on sections 7.3 - 7.5, but you should be familiar with the entire chapter to do well.

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

The Chapter Seven 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 222 class and should let you see what is important in this chapter. You can also view the Lecture Notes in presentation software: Keynote, PowerPoint

Several handouts are available from Chapter Seven. Feel free to explore all of them

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

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. Basic Stoichiometry - Grams to Moles
  2. Basic Stoichiometry - Moles to Moles
  3. Basic Stoichiometry - Grams to Grams
  4. Limiting Reagents
  5. Using Limiting Reagents
  6. Calculations Based on Percent Yields
  7. Combining Limiting Reagent and % Yield
  8. Combustion Analysis

  Practice the Concepts of Chapter Guide One

Complete problem set #1 to further explore molecular bonding. Problem set #1 covers several questions from Chapter 7 and it can be found here . We will discuss problems like these during recitation, so come prepared to ask and answer questions.

For additional practice, try completing practice problem set #1 (with answers included at the end) and/or the non-assigned problems in Chapter 7. 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 #1 (with answers at the end) which was given during a previous year's CH 222 class will help you understand the kind of questions that will be asked on the quiz.

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The Chapter Guides:

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Questions? Contact me!