Titration is a type of quantitative chemical analysis. It is used to work out the unknown concentration of a known substance. It makes the use of two main chemical apparatus namely,pipette and burette. Standard pipette measures a volume of 10 ml and burette , a volume of 50ml.External indicators like phenolphthalein, methyl orange and internal indicators like KMnO4 are used to mark the end point of titration. A known concentration and volume of one reagent, called the titrant or titrator, is added to a known volume of another reagent, the analyte or titrand, slowly from a burette until the end point is reached. The volume added before the end point is reached is noted. Because one of the solutions, the titrant, has a known concentration, that of the other, the titrand, can be calculated.
Since volume measurements play a key role in titration, it is known as volumetric analysis as well as quantitative analysis.
References[change | change source]
- Daintith, John, ed. (2008). A Dictionary of Chemistry (Sixth ed.). p. 530. .