Galvanic cells

6 videos
Batteries power much of our lives (literally). In this tutorial, we'll use our knowledge of oxidation and reduction to understand how Galvanic/Voltaic cells actually work.

Redox reaction from dissolving zinc in copper sulfate

VIDEO 5:01 minutes
What happens when you add zinc to a solution of copper sulfate? Identifying the half reactions to see what got oxidized and reduced.

Introduction to galvanic/voltaic cells

VIDEO 6:00 minutes
How to use a redox reaction to construct a galvanic/voltaic cell to produce a flow of current.. Shows the flow of electrons and ions, and explains the role of the salt bridge.

Electrodes and voltage of Galvanic cell

VIDEO 4:33 minutes
Identifying the anode and cathode in a galvanic cell, and calculating the voltage using standard electrode potentials.

Shorthand notation for galvanic/voltaic cells

VIDEO 7:17 minutes
How to describe cell using shorthand notation.

Lead storage battery

VIDEO 9:06 minutes
Balancing the redox reaction (in acid) that occurs in a lead storage battery.

Nickel-cadmium battery

VIDEO 11:07 minutes
Balancing the redox reaction (in base) that occurs in a nickel-cadmium battery.