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The Case of the Poisonous Pill

Summary:

A girl falls ill and dies after taking a medicine that her mother gives her. Soon other deaths are reported. The common factor in all of the cases is Extra-strength Tylenol.

Loosely based on the 1982 Chicago Tylenol murders, this problem-based learning investigation requires students to use moles, percent composition, and empirical formulas to determine why people keep dying after taking Tylenol.

Note: This product is also part of a BUNDLE found here.

Objectives:

The student will be able to:

(A) Calculate formula/ molar mass.

(B) Calculate percent composition.

(C) Calculate empirical and molecular formulas.

(D) Define and use the concept of a mole.

(E) Use the mole concept to calculate the number of atoms, ions, or molecules of a sample of material.

Contents

1. Introduction (Reading)

- A girl dies after taking a common medication given to her by her mother. The mother says that she gave the girl Tylenol from her purse and gives you a small pill case. You want to know the identities of the other pills in the case.

2. Counting Atoms in a Formula (Notes/ Worksheet)

- Students learn to count the atoms in a formula and apply this to the formulas of several known medications.

3. Counting Atoms in a Sample (Lab/ Notes)

- Students estimate number of using mass and are introduced to the mole.

4. Extra Practice: Moles to Particles/ Particles to Moles (Worksheet)

5. Moles to Mass (Notes)

- Students convert moles to mass and determine the formula/ molar masses of several known medications.

6. Mass to Moles (Notes/ Lab - Two Versions)

- Students convert mass to moles and find the number of moles of several medications.

7. Mixed Practice: Moles/ Particles/ Mass - Worksheet

8. Percent Composition I (Lab/ Notes)

- Students find the percent composition of an egg and learn to calculate the percent composition of elements in a compound.

9. Percent Composition II (Lab)

- Students decide if two pills are identical by comparing the percent compositions of their active ingredient and binder.

10. Percent Composition Practice - Worksheet

11. Empirical Formulas (Notes/ Worksheet)

- Students learn to calculate empirical formulas to determine what medications the victim’s mother has in her purse.

12. Molecular Formulas (Notes/ Worksheet)

- Students learn to calculate molecular formulas.

13. More Victims (Reading)

- More victims appear. The investigation shifts to determine if they could have been poisoned.

14. Fatal Dose (Worksheet)

- Students use moles to calculate whether a fatal dose of a poison could fit in a Tylenol capsule.

15. Percent Composition III (Worksheet)

- Students determine the identity of the poison using percent composition.

16. Suspects I (Reading/ Worksheet)

17. Suspects II (Reading/ Worksheet)

18. The “Real” Story of the Tylenol Murders (Reading)

19. Teacher Pages

- Notes for teaching and keys

Summary:

A girl falls ill and dies after taking a medicine that her mother gives her. Soon other deaths are reported. The common factor in all of the cases is Extra-strength Tylenol.

Loosely based on the 1982 Chicago Tylenol murders, this problem-based learning investigation requires students to use moles, percent composition, and empirical formulas to determine why people keep dying after taking Tylenol.

Note: This product is also part of a BUNDLE found here.

Objectives:

The student will be able to:

(A) Calculate formula/ molar mass.

(B) Calculate percent composition.

(C) Calculate empirical and molecular formulas.

(D) Define and use the concept of a mole.

(E) Use the mole concept to calculate the number of atoms, ions, or molecules of a sample of material.

Contents

1. Introduction (Reading)

- A girl dies after taking a common medication given to her by her mother. The mother says that she gave the girl Tylenol from her purse and gives you a small pill case. You want to know the identities of the other pills in the case.

2. Counting Atoms in a Formula (Notes/ Worksheet)

- Students learn to count the atoms in a formula and apply this to the formulas of several known medications.

3. Counting Atoms in a Sample (Lab/ Notes)

- Students estimate number of using mass and are introduced to the mole.

4. Extra Practice: Moles to Particles/ Particles to Moles (Worksheet)

5. Moles to Mass (Notes)

- Students convert moles to mass and determine the formula/ molar masses of several known medications.

6. Mass to Moles (Notes/ Lab - Two Versions)

- Students convert mass to moles and find the number of moles of several medications.

7. Mixed Practice: Moles/ Particles/ Mass - Worksheet

8. Percent Composition I (Lab/ Notes)

- Students find the percent composition of an egg and learn to calculate the percent composition of elements in a compound.

9. Percent Composition II (Lab)

- Students decide if two pills are identical by comparing the percent compositions of their active ingredient and binder.

10. Percent Composition Practice - Worksheet

11. Empirical Formulas (Notes/ Worksheet)

- Students learn to calculate empirical formulas to determine what medications the victim’s mother has in her purse.

12. Molecular Formulas (Notes/ Worksheet)

- Students learn to calculate molecular formulas.

13. More Victims (Reading)

- More victims appear. The investigation shifts to determine if they could have been poisoned.

14. Fatal Dose (Worksheet)

- Students use moles to calculate whether a fatal dose of a poison could fit in a Tylenol capsule.

15. Percent Composition III (Worksheet)

- Students determine the identity of the poison using percent composition.

16. Suspects I (Reading/ Worksheet)

17. Suspects II (Reading/ Worksheet)

18. The “Real” Story of the Tylenol Murders (Reading)

19. Teacher Pages

- Notes for teaching and keys

Total Pages

74 pages

Answer Key

Included

Teaching Duration

2 Weeks

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