At the equivalence point of a weak-acid and strong-base titration, the pH is generally greater than 7.

### Why this is right At equivalence, the weak acid has been converted mainly to its conjugate base. That conjugate base reacts with water to produce hydroxide ions, so the solution is generally basic and has pH above 7. ### The concept Equivalence means the reacting acid and base have combined in stoichiometric amounts; it does not automatically mean pH 7. The salt produced can affect pH through its reaction with water. ### Terms - **Equivalence point**: the titration point at which the acid and base have reacted in stoichiometric amounts. - **Titration**: a method of determining concentration by adding a measured reactant. ### Remember A weak acid titrated with a strong base usually has a basic equivalence point.