Topic 5.1 Redox equilibria (application)

Return to AS and A2 chemistry

5.1a relate changes in oxidation number to reaction stoichiometry

5.1b understand the procedures and principles involved in the use of potassium manganate(VII) to estimate reducing agents and potassium iodide and sodium thiosulphate to estimate oxidising agents

5.1c recall the definition of standard electrode potential (standard reduction potential) and understand the need for a standard electrode

5.1d predict the likely direction of spontaneous change of redox reactions, using standard electrode potential data, and understand why these predictions may not be borne out in practice

5.1e understand disproportionation reactions in terms of standard electrode potentials

5.1f understand the applications of electrode potentials in connection with corrosion and to the solution of problems caused by corrosion

5.1g understand the application of electrode potential to the construction of simple storage cells.

· the recall of a specific storage cell will not be required