Description
Grades 9–12.
- Study stoichiometry in a new and innovative way
- Write and balance chemical equations
- Use stoichiometry to determine the composition of a common antacid
Students first use manipulative cards to set up and practice stoichiometric problems. They then obtain data from chemical reactions, which they compare with the results of stoichiometric calculations and determine the percent yield. In the concluding activity, students design and conduct their own experiments to determine the mass percent of sodium bicarbonate in antacid tablets. Materials are sufficient for 32 students working in groups of 4.
Includes
- 10 Aluminum Weighing Dishes
- 1 1 M Hydrochloric Acid, 250 mL
- 1 Sodium Bicarbonate, 16 oz
- 8 Dry Erase Markers
- 1 Airline Tubing
- 8 Plastic Trays
- 30 Pipets
- 8 Stoichiometry Card Sets
- 100 Plastic Weighing Boats
- 8 Syringes, 5 mL
- 8 Medicine Cups
- 8 Plastic Cups, 4 oz
- 24 Alka-Seltzer® Tablets
- 72 Parafilm® Squares
- 8 Rubber Stoppers
- 1 K’Nex® Stoichiometry Set
- 1 Teacher’s Manual with Reproducible Student Guide