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Electrochemical Cells



Electrode potentials & Cells

AQA Content

Use EƟ values to predict the direction of simple redox reactions
Calculate the EMF of a cell
Write and apply the conventional representation of a cell.

Specification Notes

IUPAC convention for writing half-equations for electrode reactions.
The conventional representation of cells.
Cells are used to measure electrode potentials by reference to the standard hydrogen electrode.
The importance of the conditions when measuring the electrode potential, E (Nernst equation not required).
Standard electrode potential, EƟ, refers to conditions of 298 K, 100 kPa and 1.00 mol dm−3 solution of ions.
Standard electrode potentials can be listed as an electrochemical series.



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