Chemistry › Section Q · Electrochemistry › Topic Q.3
Electrode and cell potentials
A zinc and copper cell gives about 1.10 V, but a lithium cell can give more than 3 V. One table of standard reduction potentials lets you predict the voltage of any pairing, and whether its reaction will run at all.
In this topic
- What a cell potential measures
- A reference half-cell
- Standard reduction potentials
- Reading the table
- Calculating a standard cell potential
- Worked example: a zinc and silver cell
- Predicting whether a reaction will run
- Worked example: metals in acid
- Common mistakes to avoid
- Key takeaways
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