|Address||P.O. Box 219 Batavia, IL 60510|
This item can only be shipped to schools, museums and science centers
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.
Materials Included in Kit:
Acetic acid, 2 M, 750 mL
Alizarin yellow R solution, 0.1%, 20 mL
Ammonium chloride, 25 g
Ammonium hydroxide, 0.1 M, 25 mL
Ammonium hydroxide, 1 M, 50 mL
Bromthymol blue solution, 0.04%, 25 mL
Calcium carbonate, 280 g
Hydrochloric acid, 2 M, 750 mL
Phenolphthalein solution, dropper bottle, 1%, 30 mL
Sodium acetate, lab grade, 120 g
Sodium bicarbonate, 50 g
Sodium chloride, lab grade, 100 g
Universal indicator, rainbow acid, 50 mL
Pipet, Beral-type, graduated, 26
Straws, flexi-end, 10
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.