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Quantitative Lesson 37 "Percent Composition"

Science and Technology Standards:

PA Standard 3.4.10A: Classify and describe, in equation form, types of chemical and nuclear reactions
Anchor Assessment S11.A.1.1: Analyze and explain the nature of science in the search for understanding the natural world and its connection to technological systems.
Anchor Assessment S11.A.1.2: Identify and analyze the scientific or technological challenges of societal issues; propose possible solutions and discuss implications.
Anchor Assessment S11.A.1.3: Describe and interpret patterns of change in natural and human-made systems.
Anchor Assessment S11.A.2.1: Apply knowledge of scientific investigation or technological design to develop or critique aspects of the experimental or design process.
Anchor Assessment S11.A.2.2: Evaluate appropriate technologies for a specific purpose, or describe the information the instrument can provide.
Anchor Assessment S11.A.3.2: Compare observations of the real.
Anchor Assessment S11.A.3.3: Compare and Analyze repeated processes or recuring elements in patterns.
Anchor Assessment S11.B.1.1: Explain structure and function at multiple levels of organization.
Anchor Assessment S11.C.1.1: Explain the relationship between the structure an properties of matter.

Purpose:

1. I will memorize select polyatomic ions.
2. I will calculate the mass of 1 mole of a compound.
3. I will use fence posting to solve moles, molecules, and grams problems.
4. I will calculate the percent composition of compound.

Homework Due:

1. Moles, Molecules, and Grams WS #3 (Lesson 37)
2. Polyatomic Ions Quiz (Lesson 37)
3. Avogadro's Number Lab Report (Due Lesson 38)
4. Fence Posting WS #6 (Due Lesson 38)

Handouts/Supplies:

1. Moles, Molecules, and Grams WS #3
2. Percent Composition WS #1

I. Introduction

Opening Assignment:

Warm-Up: Write the name or symbols for all 20 polyatomic ions.
Review warm-up
State the purpose

II. The Lesson:

Activity #1: Review Final Polyatomic Ions Quiz
Activity #2: Review Moles, Molecules, and Grams WS #3
Activity #3: Discuss Mole Day
Activity #4: Overview percentage and percent composition, and conversion factors
Activity #5: Complete the Percent Composition WS #1
Activity #6: Complete the Percent Composition WS #1: 1b

III. Closure:

Summary Assignment:

Summarize today's lesson
1. I will memorize select polyatomic ions.
2. I will calculate the mass of 1 mole of a compound.
3. I will use fence posting to solve moles, molecules, and grams problems.
4. I will calculate the percent composition of compound.

Homework Assignment (Write down in planners):

1. Avogadro's Number Lab Report (Due Lesson 38)
2. Fence Posting WS #6 (Due Lesson 38)
3. Percent Composition WS #1 (Lesson 40)

Preview of Next Class:

1. Moles, Molecules, and Grams Quiz
2. Hydrate Lab

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Page maintained by: Stephen A. Roe
Last update: Thursday, October 19, 2006 3:32 PM