Electrochemistry

Web page last edited: December 1, 2003

• This is another example of an experiment with many short parts.
• Each part tries to illustrate one aspect of electrochemistry
• The Web pages are more detailed than the formal class notes and they contain links to other Web sites

The topics being covered are

• 1. Making a Voltaic Cell
  • Measuring Cell Voltage and Verifying Nernst's Law
• 2. Working with a Redox Type of Electrode
  • specifically a Pt| Fe³⁺, Fe²⁺ electrode
    • electrode voltage changes during the oscillating clock demonstration
• 3. pH Electrodes and Titration Curves
  • computerized pH recording during acid base titration curves
• 4. Redox electrodes and Titration Curves
  • computerized recording of voltage during the titration of Fe²⁺
• 5. Faraday's Law and the Electrolysis of Water
• 6. Electrochemical Titrations
  • Using Faraday's Law for Quantitative Analysis
• 7. Simple Electroplating and Electroforming
  • we will get the electroforming from Nov. 22 to work; the picture shows some samples from Nov 22 (finished long after you left.)
  • we will electroplate some simple objects and maybe some more complex objects
    • Web site with supplies and description, electroplating, anodizing
    • A Web site on electroforming (electroless Ni mainly)
• 8. Electroless Plating
  • silver and copper mirrors
• 9. Anodizing Aluminum and Titanium
  • see Chapter 18: Interlude in your textbook
  • creating a tough oxide coating on Aluminum and dying it
  • brilliant colors on Titanium, controlled by applied voltages
• 10. (link not yet available) Review of commercial batteries
  • dissection of some( not all can be opened safely)
  • inspection and voltages of some
• 11. (link not yet available) Demonstration of an Electrochromic Material
  • making an electrode "wink"
  • electrochemically making a conductive polymer, polyaniline