Module 6 Intro
1. Module 6 Intro
1.2. In this Module
Module 6—Stoichiometry
In This Module
Lesson 1—Chemical Equations
The focus of this lesson is to review the main types of chemical reactions and how to write balanced chemical equations. You will learn about what balancing means in terms of quantities of substances involved in a chemical reaction. The concepts covered in this lesson are critical to what you will learn in the remaining lessons.
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What information about a chemical system is contained within a balanced chemical equation?
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What information about a chemical system is not contained within a balanced chemical equation?
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What is conservation of mass, and how is it demonstrated in a chemical equation?
Lesson 2—Gravimetric Stoichiometry
Stoichiometry is a method to predict the quantity of each substance that will be involved in a reaction. Are predictions made using this method verified by experimental results? In this lesson you will practise your skills and analyze data collected from an experiment. You will also discover how to evaluate a chemical reaction using both the theoretical and actual yield of a precipitate produced.
- How are predictions made about the masses of reactants and/or products involved in chemical reactions?
- How can you test the predictions made using the stoichiometric method?
- What is percent yield and how can it be determined?
Lesson 3—Gas Stoichiometry
In this lesson you will explore stoichiometry of chemical systems that involve the reactions of gases.
- How is the stoichiometric method applied to reactions that involve gases?
Lesson 4—Solution Stoichiometry
Do principles of stoichiometry apply to aqueous solutions? Are predictions made using this method verified by experimental results? In this lesson you will practise your skills and analyze data collected from experiments.
- How is the stoichiometric method applied to reactions that involve solutions?
Module Assessment
The assessment in this module consists of the following:
- Assignments for Lessons 1, 2, 3, and 4
- Module Assessment (Parts 1, 2, and 3)—Stoichiometry Calculator submitted to your teacher for review and comments.
- Module Assessment (Part 4)—Stoichiometry Calculator submitted to your teacher for a final grade.
The module assessment for this part of the course will be a spreadsheet that you design. You will complete different parts of the spreadsheet in each of the Reflect and Connect sections of the lessons in the module, and you will submit them to your teacher for feedback. More information about the spreadsheet can be found in the Module Assessment section.
Scoring Guide for the Stoichiometry Calculator
Score |
Criteria |
5 |
The design and function of the product is clearly explained. Operation of the Stoichiometry Calculator is straightforward and results in immediate, correct answers for all types of systems (mass, gasses, and solutions). Correct and logical algorithms are used.
|
4 |
The design and function of the product is well explained. Operation of the Stoichiometry Calculator is straightforward and results in immediate, correct answers for all types of systems (mass, gasses, and solutions). Correct and logical algorithms are used.
|
3 |
The design and function of the product is explained. Operation of the Stoichiometry Calculator results in immediate, correct answers for all systems (mass, gasses, and solutions). Correct and logical algorithms are used.
|
2 |
The design and function of the product is poorly explained. Operation of the Stoichiometry Calculator involves more than simple input of a few values. The use of the calculator does not consistently result in correct answers for all systems (mass, gasses, and solutions). Generally correct algorithms are used for most systems.
|
1 |
The design and function of the product has one or more serious flaws. The use of the calculator does not consistently result in correct answers for any systems, but evidence of an attempt is provided.
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0 |
The response is not appropriate for a 20-level student. |