Module 6 Intro

Module 6—Stoichiometry

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People often don’t think about it, but chemical reactions involving gases are quite common. Do you recall the ideal gas law? This law was an important relationship that equated the number of moles of a gas to the conditions at which it is contained (pressure, volume, and temperature).

Read “7.3 Gas Stoichiometry” on pages 294 to 296 of your textbook. Work through “SAMPLE problem 7.3” and “COMMUNICATION examples” 1 and 2.

 

Use your notes or your textbook to write the following relationships that you will refer to many times in this lesson:

• ideal gas law

• volume of a gas at standard temperature and pressure (STP)

• volume of a gas at standard ambient temperature and pressure (SATP)

Discuss

 

Are the general steps for stoichiometry calculations the same for both solids and gases? Do you agree with the statements and explanation provided in the paragraph following “COMMUNICATION example” 1 on page 295 of your textbook? Would it be possible to summarize the methods used to complete stoichiometry calculations for both solids and gases? Are the “SUMMARY” and the “Stoichiometry Calculations” in the margin on page 296 of your textbook adequate?

 

Post your answers to these questions to the discussion board. Read the postings from two other students. Send your answer to your teacher.

 

Self-Check

 

Complete “Practice” questions 1 to 3 on page 296 of your textbook.

 

 

Module 6: Lesson 3 Assignment

 

Use the following lab activity to complete the first part of the Module 6: Lesson 3 Assignment that you saved to your course folder earlier in this lesson. Save the copy of Lesson 3 Assignment containing your answers to your course folder. You will submit this assignment to your teacher later in the lesson.

 

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