Electrochemistry

Worked examples (6)

• 1Oxidation numbers in simple species (2 marks)
• 2Identifying oxidation and reduction (3 marks)
• 3Oxidation numbers in ions and exceptions (3 marks)
• 4Identifying oxidising/reducing agents (3 marks)
• 5Recognising disproportionation (3 marks)
• 6Balancing a redox equation (4 marks)

Worked examples (6)

• 1Products from a molten salt (2 marks)
• 2Products from aqueous solutions (3 marks)
• 3Charge and moles of electrons (3 marks)
• 4Mass of metal deposited (4 marks)
• 5Volume of gas at an electrode (4 marks)
• 6Cells in series (4 marks)

Worked examples (6)

• 1Defining standard electrode potential (2 marks)
• 2Calculating E°cell (2 marks)
• 3Predicting feasibility (3 marks)
• 4Writing the overall cell reaction (3 marks)
• 5Applying the Nernst equation (4 marks)
• 6Effect of concentration on E°cell (4 marks)