Stewart's Equations

Stewart's Equations describe how the pH of a solution with a weak acid or base changes when a strong acid or base is added. They relate the initial amounts of weak acid and its conjugate base, the added strong acid or base, and the solution's pH. Essentially, these equations help calculate how the pH shifts during titrations or chemical reactions involving weak acids or bases, considering their acid dissociation and the added strong substances, providing a precise way to predict solution pH changes under various conditions.