The Henderson-Hasselbalch equation

The Henderson-Hasselbalch equation describes the relationship between a buffer solution's pH, its acidic component, and its conjugate base. It shows how pH depends on the ratio of the amount of acid to its conjugate base. Specifically, when there’s more acid, the pH is lower (more acidic), and when there’s more base, the pH is higher (more basic). This equation helps chemists understand and predict the acidity of solutions, such as blood or medications, based on the amounts of acid and base present, ensuring accurate control of pH in different contexts.