BRAINCAKEElectrochemical Half Cells
A half cell is made of an element in two different oxidation states. The simplest half cell has a strip of metal placed in an aqueous solution of its ions. For example Cu(s) metal and aqueous Cu2+ ions (copper sulfate solution). An equilibrium exists at the surface of the metal.
Cu2+(aq) +2 e- &rlhar Cu(s)
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More in Electrochemistry
- Oxidation and Reduction
- Ionic Equations
- Electrochemical Cells
- The Standard Hydrogen Half Cell
- Standard Electrode Potential Eθ and the Electrochemical Series
- Calomel Electrode
- Standard Cell Potentials Eθcell Values and Electrochemical Cells
- Non-Standard Conditions
All 14 lessons in Electrochemistry · All OCR A-level Chemistry topics