Introduction for Module 9 – Electrochemistry

Suggested Reading: Chapter 17.2 - 17.4

Learning Objectives:

• Describe the function of a galvanic cell and its components
• Use cell notation to symbolize the composition and construction of galvanic cells
• Describe and relate the definitions of electrode and cell potentials
• Calculate cell potentials and predict redox spontaneity using standard electrode potentials

Captions and Attributions:

• A copper wire reacts in silver solution, showing a redox reaction. Figure 17.2 A copper wire and an aqueous solution of silver nitrate by Open Stax is licensed under CCBY 4.0.

• A galvanic (aka. spontaneous) electrochemical cell separates a redox reaction and allows for the flow of electrons that can be used to do work. Figure 17.3 A galvanic cell based on the spontaneous reaction by Open Stax is licensed under CCBY 4.0.

• The voltage, or desire (potential) for electrons to flow through the cell can be measured with a voltmeter and can also be calculated using a table of standard reduction potentials. Figure 17.6 A cell permitting experimental measurement by Open Stax is licensed under CCBY 4.0.