Sign up to our 2025 A level and International A level revision courses at Hazel explains all of the second year content from the AQA A Level Chemistry course. All notes used in the recording have been taken from our AQA A Level Chemistry Perfect Answer Revision Guide: Topic Timings: Born-Haber Cycles 01:45 Enthalpies of Solution 20:01 Gibbs Free Energy and Entropy 30:48 Order of Reactions 48:03 The Arrhenius Equation 01:00:39 Determining the Rate Limiting Step 1:13:14 Equilibrium Constant, Kp 1:34:01 Electrochemical Cells 1:55:10 Non-rechargeable & Rechargeable Cells 2:20:59 Calculating pH 2:46:22 Ionic Product of Water, Kw 2:56:17 Acid Dissociation Constant 3:07:44 Titration Curves 3:20:11 Selecting Indicators 3:30:43 Buffers 3:33:50 Period 3 Elements & their Oxides 4:10:30 Transition Metals 4:19:04 Reactions of Ions in Aqueous Solution 4:55:23 Aldehydes & Ketones 5:14:19 Carboxylic Acids & Esters 5:42:51 Triglycerides 5:51:44 Acylation 6:01:04 Benzene 6:18:21 Amines 6:33:38 Nucleophilic Properties of Amines 6:47:22 Condensation Polymerisation 6:55:47 Amino Acids & Proteins 7:12:34 DNA 7:22:54 Anti-Cancer Drugs 7:30:21 Organic Synthesis 7:36:29 C-13 NMR 7:46:14 Proton NMR 8:04:35 Chromatography 8:29:45 For private tuition and Perfect Answer Revision Guides, visit SwH Learning is the new name for Science with Hazel These SwH Learning videos are designed to help with your GCSE or IGCSE science revision. To keep up to date with my SwH Learning videos and support: Visit my website: Follow me on Instagram: Add me on Snapchat: Like my Facebook page: Hazel completed her undergraduate degree at St John's College, the University of Cambridge. She then did a PGCE (Post-Graduate Certificate of Education) before qualifying as a science teacher. She now works full time as a professional tutor. Material required for Grade 9 (A*) is included. Please leave any topic requests in the comments below.