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Carolina Investigations® for Use with AP® Chemistry: Le Châtelier's Principle and Equilibrium Shifts Kit

Item # 840594 Exclusive This product is exclusive to Carolina Biological Supply.

Investigate how temperature, concentration, and pressure affect chemical equilibrium in 3 different reactions. This experiment addresses equilibrium changes both in solution and in the gas phase, shows the reversible nature of reactions, and provides visual interest by using changes in color to monitor chemical reactions. It also includes a discussion of the Haber process. For 30 students working in teams of 3.

Price

$70.85

In stock and available to ship.

Investigate how temperature, concentration, and pressure affect chemical equilibrium in 3 different reactions. Teach this laboratory experience using either the guided activity or inquiry activity. In the guided activity, students perform 3 separate activities to investigate chemical equilibrium. In the first investigation, they react starch and iodine at 3 different temperatures and observe the variation in color. In the second, they react magnesium hydroxide with an acid to determine the affect a change in hydroxide-ion concentration has on solubility. For the third investigation, they pull a partial vacuum on carbonated water to show how pressure changes affect pH. Students also observe how changes in temperature and common ions affect the equilibrium between 2 complex ions. In the inquiry activity, students design experiments to show how temperature, concentration, and pressure affect the equilibria of starch-iodine, magnesium hydroxide, and carbonated water. They also design an experiment to maximize the percent yield of a reaction by adjusting temperature and reactant concentration.

Both activities include assessment questions that follow the format of the AP® Chemistry Exam free-response questions. In the assessment, students consider how stresses applied to the reactions of photosynthesis and the buffering of blood would affect their equilibria, and how to maximize the formation of either reactants or products using these stresses.

Provides the following AP® Chemistry experiences: design a procedure to collect data, analyze data, make observations, construct explanations of phenomena based on evidence and make predictions about natural phenomena. This experiment addresses equilibrium changes both in solution and in the gas phase, shows the reversible nature of reactions and provides visual interest by using changes in color to monitor chemical reactions. It also includes a discussion of the Haber process. Materials are sufficient for 30 students in teams of 3. Digital teacher's manual, included FREE with kit purchase, is a 12-month eBook license to the Le Châtelier's Principle and Equilibrium Shifts teacher's manual. You can also access the digital student guide for this kit for free at Carolina Science Online®.

AP® is a trademark registered and/or owned by the College Board®, which was not involved in the production of, and does not endorse, these products.

  • This item is only available from Carolina Biological Supply Company.
 
Components Qty Included?
0.5 M Copper (II) Chloride, Dihydrate, 120 mL 1 Included
1 M Sodium Hydroxide, 120 mL 1 Included
Bogen Universal Indicator, 15 mL 1 Included
Bogen Universal Indicator Color Chart 1 Included
Bromthymol Blue, 0.04%, 15 mL 1 Included
0.1 M Silver Nitrate, 15 mL 1 Included
Iodine-Potassium Iodide, 30 mL 1 Included
Starch Solution, 1%, 4 oz 1 Included
Milk of Magnesia, 4 oz. 1 Included
Syringes, 10 mL 10 Included
Syringe End Caps 10 Included
Dropping Pipets 45 Included
Jelly Tray Sheets 4 Included
Petri Dishes, 60 x 15 mm 20 Included
Weigh Boats 30 Included
White Vinegar, 1 pt 1 Included
Wooden Stirrers 10 Included
Teacher's Manual and Reproducible Student Guide 1 Included
Seltzer Water, 1 L 1 Needed, Not included
Laboratory Thermometers 10 Needed, Not included
Beakers, 50 mL (or small cups) 10 Needed, Not included
Beakers, 250 mL 20 Needed, Not included
Graduated Cylinders, 10 mL 10 Needed, Not included
Standard Test Tubes 40 Needed, Not included
Test Tube Racks 10 Needed, Not included
Permanent Markers or Wax Pencils 10 Needed, Not included
Wash Bottles of Distilled Water 10 Needed, Not included
Sodium Chloride, 25 g (in a small beaker) 1 Needed, Not included
Bunsen Burner (with iron ring, ring stand and wire gauze) 1 Needed, Not included
Balance(s) Needed, Not included
Ice Needed, Not included
Paper Towels Needed, Not included