The half-equivalence point in a titration occurs when the amount of titrant added is exactly half what is needed to reach the equivalence point.
A technique where a solution of known concentration is used to determine the concentration of an unknown solution.
This is the point in a titration at which enough titrant has been added to react exactly with the substance in solution being titrated.
A substance that changes color in response to a chemical change. An acid–base indicator changes color depending on pH.