Written by the Fiveable Content Team • Last updated September 2025
Written by the Fiveable Content Team • Last updated September 2025
Definition
A titration curve is a graph of the pH of a solution as a function of the volume of titrant added during an acid-base titration. It helps illustrate the point at which neutralization occurs.
5 Must Know Facts For Your Next Test
The equivalence point on a titration curve is where the amount of acid equals the amount of base during the titration.
A titration curve typically has distinct regions: buffer region, steep rise or fall, and equivalence point.
The initial pH on a titration curve depends on whether you start with an acid or base.
For strong acid-strong base titrations, the pH changes very rapidly near the equivalence point.
In weak acid-strong base or weak base-strong acid titrations, there are buffer regions that resist changes in pH before reaching equivalence.
The stage in a titration where the number of moles of hydrogen ions equals the number of moles of hydroxide ions.
Buffer Region: A part of the titration curve where pH changes gradually due to buffering action from weak acids and their conjugate bases or vice versa.
Indicator: A chemical that changes color at (or near) the equivalence point to signal that enough titrant has been added.