Class 12 Chemistry simulations · Electrochemistry

Daniell cell and the Nernst equation

Change the concentrations of Zn²⁺ and Cu²⁺ and read the cell voltage.

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What to notice

Electrons flow from zinc (anode, oxidation) to copper (cathode, reduction); the salt bridge keeps the solutions neutral.

Key relation

E_cell = E°_cell − (0.0591/2) log([Zn²⁺]/[Cu²⁺]) ; E°_cell = 1.10 V

Try this

Make [Cu²⁺] 100 times smaller than [Zn²⁺]. By how much does the voltage fall?

What you can change

• [Zn²⁺]: 0.001 to 2 M
• [Cu²⁺]: 0.001 to 2 M

More in Electrochemistry

• Electrolysis and Faraday’s laws
• Molar conductivity: strong vs weak electrolytes

See all Class 12 Chemistry simulations or every Physica simulation.