Chemistry Percent Comp. & Empirical/Molecular Formulas Guided Inquiry Lesson

Chemistry Percent Comp. & Empirical/Molecular Formulas Guided Inquiry Lesson
Chemistry Percent Comp. & Empirical/Molecular Formulas Guided Inquiry Lesson
Chemistry Percent Comp. & Empirical/Molecular Formulas Guided Inquiry Lesson
Chemistry Percent Comp. & Empirical/Molecular Formulas Guided Inquiry Lesson
Chemistry Percent Comp. & Empirical/Molecular Formulas Guided Inquiry Lesson
Chemistry Percent Comp. & Empirical/Molecular Formulas Guided Inquiry Lesson
Chemistry Percent Comp. & Empirical/Molecular Formulas Guided Inquiry Lesson
Chemistry Percent Comp. & Empirical/Molecular Formulas Guided Inquiry Lesson
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Percent Composition and Empirical/Molecular Formulas Guided Inquiry Lesson
This is a student-centered, active learning lesson without lecture or notetaking!

You might also like these related lessons!
Moles and Mole Conversions Guided Inquiry Lesson

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Lesson Summary:
This guided inquiry lesson enables students to construct their own understanding of how to perform the following calculations: determination of the percent composition of a compound, determination of the empirical formula of a compound, determination of the molecular formula of a compound. Students are able to actively learn the material without lecture or note taking.

Part 1: Percent Composition
• Students explore the concept of percent composition by learning to calculate the percent composition by mass of toy blocks. Students then apply the concept of percent composition to a complex molecule. The molecule is illustrated for students and shown in conjunction with each atom’s atomic mass.

• Students practice calculating the percent compositions of a molecules by working through a short set of task cards.

Part 2: Molecular vs Empirical Formulas
• Using illustrations of several molecules, students discover the difference between empirical and molecular formulas.

Part 3: Determining the Empirical Formula
• Students learn the steps to determine the empirical formula of a compound by using a series of visual cues.

• Students practice determining the empirical formulas of compounds by working through a short set of task cards.

Part 4: Determining the Molecular Formula
• Students learn the steps to determine the molecular formula by using a graphic organizer.

• Students practice determining the molecular formulas of compounds by working through a short set of task cards.

Student Study Sheets
Students are provided with student study sheets summarizing all of the important concepts and vocabulary in this lesson.

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Learning Objectives (Bloom’s Revised Taxonomy):
Remembering: Define the following terms: percent composition of a compound, molecular formula, empirical formula.
Understanding: Differentiate between molecular and empirical formulas.
Applying: Calculate the percent composition of a compound.
Analyzing: Use the percent composition of a compound to determine the empirical formula of a compound.
Evaluating: Use the molar mass and empirical formula of an unknown compound to determine its molecular formula.

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Included in this Download:
• Cover page (1 page)
• Guided inquiry lesson (9 pages)
• Handouts (5 pages)
• Student study sheets (2 pages)
• Teacher notes (2 pages)
• Guided inquiry lesson with suggested answers (9 pages)
• Task cards, answers, and task card answer sheets (22 pages)

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Total Pages
50 pages
Answer Key
Included
Teaching Duration
50 minutes
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