Reviewed by Rishi Desai, MD, MPH

Buffering and Henderson-Hasselbalch equation

In chemistry, the Henderson–Hasselbalch equation describes the derivation of pH as a measure of acidity in biological and chemical systems. The equation is also useful for estimating the pH of a buffer solution and finding the equilibrium pH in acid-base reactions. The equation is given by: pH = pK

_{a}+ log_{10 }([A^{-}]/[HA])