The Henderson-Hasselbalch Equation - Interactive Lesson

Interactive Course Summary

The Henderson-Hasselbalch Formulation — The Henderson-Hasselbalch equation ($\text{pH} = \text{p}K_{\text{a}} + \log\frac{[\text{A}^-]}{[\text{HA}]}$) is an algebraic rearrangement of the standard equilibrium expression for weak acid dissociation. It resolves the pH of buffer systems directly when the equilibrium concentration distributions align with initial analytical inputs.