Before you read this, I suggest you read posts 17.49 and 18.3. The extent to which an acid molecule, that I’ll represent as HA, dissociates to give a hydrogen ion (H+) and a cation (A–) depends on its pKa value and the pH of the surrounding solution. We can deduce this statement directly from the… Continue reading 25.6 Henderson-Hasselbach equation
Before you read this, I suggest you read posts 17.49 and 25.4. The purpose of this post is to show how we can use the idea of a resonance hybrid to explain the relative acidity of acetic acid (also called ethanoic acid – the acid that gives vinegar its flavour), ethanol (the alcohol in alcoholic… Continue reading 25.5 Organic acids
Before you read this, I suggest you read post 25.3. I briefly introduced the idea of a resonance hybrid in post 16.31. Since then, I’ve written a lot about resonance, especially in post 18.8. Unfortunately, understanding resonance won’t help you to understand resonance hybrids. Resonance is not involved in the concept of resonance hybrids. I… Continue reading 25.4 Resonance hybrids
Thinking about Science with David Hukins 