UTPA STEM/CBI Courses/Stoichiometry (Jorgensen)

Course Title: CHEM1411

Lecture Topic: Stoichiometry

Instructor: Kameron Jorgensen

Institution: TAMIU (Texas A&M International University)

Backwards Design

Course Objectives

Primary Objectives- By the next class period students will be able to:
- Understand general principles of chemistry.
- Understand stoichiometry
- Demonstrate the ability to solve quantitative problems.
- Recognize the role of chemistry in real world issues.
- Demonstrate knowledge of common reactions and reaction mechanisms of the elements & compounds.

Sub Objectives- The objectives will require that students be able to:
- Write and balance chemical equations
- Use coefficients and conversions to calculate qualitative amounts of chemicals

Difficulties- Students may have difficulty:
- Algebra
- Conversions
- Balancing equations

Real-World Contexts- There are many ways that students can use this material in the real-world, such as:
- Chemicals needed to make a certain amount of aspirin.
- Water stored in a camel hump.
- Weight of chemicals needed to burn enough fuel for a spaceship.
- CO2 footprint from an automobile
- Amount of chemicals needed to fill the airbag in your car

Model of Knowledge

Concept Map
- Consider the following Graph:

Content Priorities
- Enduring Understanding
  - Understand how to balance a chemical reaction
  - Understand how to go from mass of A to mass of B in a reaction AB
- Important to Do and Know
  - Understand types of reactions, e.g. exchange, combustion, etc.
  - Understand how to balancing complex reactions
- Worth Being Familiar with
  - Familiarity with real world applications

Assessment of Learning

Formative Assessment
- In Class (groups)
  - YouTube presentations on topic
  - Online examples
- Homework (individual)
  - Online homework assignments
Summative Assessment
- Online Quizzes
- Online Exams

Legacy Cycle

OBJECTIVE

By the next class period, students will be able to:

Understand general principles of chemistry.
Understand stoichiometry
Demonstrate the ability to solve quantitative problems.
Recognize the role of chemistry in real world issues.
Demonstrate knowledge of common reactions and reaction mechanisms of the elements & compounds.

The objectives will require that students be able to:

Solving real world problems using derivatives
Find absolute maximum or minimum value of a function f.

THE CHALLENGE

You are hired as the laboratory manager at a major pharmaceutical company. Your first task is to purchase chemicals for the aspirin production line in order to produce 125,000 aspirin bottles per day.

GENERATE IDEAS

How much aspirin is in each bottle?

What is the total amount of aspirin needed to be produced?

What chemicals are used in the production of aspirin?

Is any product lost in the production line?

MULTIPLE PERSPECTIVES

Provided by professor at the end of the Generate ideas portion. (You tube presentation, research articles, etc.)

RESEARCH & REVISE

Examine typical aspirin daily production

Examining typical production line % loss

Examine reactions for aspirin production

Balancing chemical equations

Computing moles of B from mass of B

Converting moles of B to moles of A

Examine unit conversion factors

TEST YOUR METTLE

Online homework assignment related to model

GO PUBLIC

Homework and exam problems that apply the module concepts to unrelated applications
- Examples:
  - An automobile engine produces energy by the combustion of gasoline, which is primarily octane, C₈H₁₈. Being a concerned citizen for your local carbon footprint you decide to compute the amount of carbon dioxide that is emitted from your car in one year.
  - The compound diborane (B₂H₆) was at one time considered for use as a rocket fuel. As an engineer you need to know how many grams of liquid oxygen would a rocket have to carry to burn 10 kg of diborane completely?

Pre-Lesson Quiz

question

Test Your Mettle Quiz

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