|Address||P.O. Box 219 Batavia, IL 60510|
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Includes Teacher Demonstration Notes and enough materials to perform each demonstration seven times.
Concepts: Common ion effect, equilibrium, Le Chatelier’s principle.
Time Required: 20 minutes
Chemicals Provided: Hydrochloric acid, acetic acid, sodium acetate, sodium chloride, sodium bicarbonate, sodium carbonate, ammonium hydroxide, ammonium chloride, phenolphthalein solution, bromthymol blue solution, alizarin yellow R solution.
HS-PS1-6. Refine the design of a chemical system by specifying a change in conditions that would produce increased amounts of products at equilibrium.