The Classical Idea of Acid-Base Titration Feasibility

The classical theory of acidbase titration feasibility is based on the endpoint error, with the equilibrium concentration Csp of weak acid and its dissociation constant Ka to attribute the titration feasibility, and solicit CspKa≥10 8 as the criterion of the titration reaction feasibility. But this viewpoint is unilateral. Only the acidbase titration feasibility deriving from the observation error of terminal point has practical significance, i.e., the criterion of the feasibility of acidbase titration reaction is CspKt≥10 6 according to theoretical analysis and calculation, in which Kt is the equilibrium constant of titration reaction.