AP* Chemistry Review Demonstration Kit
The course description for the College Board AP Chemistry lists the following topics for electrochemistry: electrolytic and galvanic cells, Faraday’s law, standard half-cell potentials, Nernst equation, and prediction of the direction of redox reactions. Use the following three demonstration to host a lively and informative review of this core topic.
• The Voltaic Cell—Use standard electrode potentials and the Nernst equation to predict the direction of current flow and the voltage when electrolyte concentrations are varied.
• Electrolysis—Measure the change in pH for the electrolysis of potassium iodide solution and use Faraday's law to determine the average current flow.
• Concentration Cell—Voltage produced with different concentrations of ions forges a deeper understanding of the Nernst equation.
Concepts: Voltaic cells, electrolysis, Nernst equation, Faraday’s Law.
Time Required: One class period
Materials Provided: Agar, copper metal, copper sulfate solution, potassium chloride, potassium iodide, nitric acid solution, zinc metal, zinc sulfate solution, potassium iodide.
*AP is a registered trademark of the College Board, which was not involved in the production of, and does not endorse, these products.
Flinn Catalog/Reference Manual Page 330
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