Electrode potentials & Electrochemical cells | A level Chemistry | Ultimate Guide

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Electrode Potentials & Electrochemical Cells | A Level Chemistry | Ultimate Guide

Master one of the trickiest A Level Chemistry topics in this complete guide to Electrochemistry! In this video, we break down electrode potentials, electrochemical cells, and the electrochemical series, step by step.

🎯 Ideal for AQA, OCR, Edexcel and all UK exam boards, this detailed explanation video covers everything you need to know — from standard hydrogen electrodes to fuel cells and commercial applications.

✅ Suitable for both first-time learners and revision
✅ Includes essential calculations and conventions
✅ Perfect for students aiming for top grades in Physical Chemistry

⏱️ TIMESTAMPS:
00:05 Introduction
00:26 Reduction & Oxidation
02:39 Electrode Potentials
04:35 Electrochemical series
05:36 Using Electrochemical Series | The best oxidising agent or reducing agent
08:25 What is an electrochemical cell?
10:06 Standard Conditions
11:19 Half Cells | Metal + Metal ions
14:07 Half Cells | No metals | Requiring a platinum electrode
15:29 The EMF of the Cell | Ecell
16:36 Calculating the EMF of the Cell
18:29 Predicting Redox Reactions
20:30 Acid Redox reactions
23:06 Combining more than 2 half equations
27:03 Conventional Cell Representation
30:08 Platinum in the conventional cell representation
33:36 EMF from the conventional cell representation
35:12 The standard hydrogen electrode
37:27 Measuring an unknown electrode potential
39:54 Changing electrode potentials
41:26 Changing conditions and EMF of the cell
42:58 Changing concentration example
44:20 Changing pressure example
45:48 What happens to EMF if current flows?
48:00 Commercial electrochemical cells
50:19 Non-rechargeable cells
53:42 Rechargeable cells
56:28 Lithium ion cell
59:12 Using the conventional cell representation
01:01:27 Fuel Cells
01:02:48 Using EMF to calculate electrode potentials
01:05:17 Hydrogen-oxygen fuel cell overview
01:07:16 Alkaline hydrogen-oxygen fuel cell in detail
01:10:41 Benefits and drawbacks of hydrogen-oxygen fuel cells

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Correction:
05:22 The sulfate equation should have 2H2O on the right hand side