Standard Potentials

A table that predicts voltages

An interactive lesson with 5 steps, about 5 minutes: you predict, drag and solve, with instant feedback on every answer. It runs in your browser and needs JavaScript.

What you’ll learn

• E°cell = E°cathode − E°anode; positive means spontaneous.
• Voltages add in series.
• ΔG = −nFE.

Steps

1. Measured against hydrogen
2. Zinc–silver
3. Stack them up
4. Why lithium?
5. Energy from a cell