titration -
a measured amount of a solution of unknown concentration is added to a known volume of a second solution until the reaction between them is just complete; the concentration of the unknown solution (the titer) can then be calculated
volumetric analysis quantitative analysis by the use of definite volumes of standard solutions or reagents
Titration is a common laboratory method of quantitative chemical analysis that is used to determine the unknown concentration of a known reactant. Because volume measurements play a key role in titration, it is also known as volumetric analysis. A reagent, called the titrant or titrator, of a known concentration and volume is used to react with a solution of the analyte or titrand, whose concentration is not known.
