Standard Solution Definition

Chemistry Glossary Definition of Standard Solution

Volumetric flasks are used to accurately prepare solutions for chemistry.
Volumetric flasks are used to accurately prepare solutions for chemistry.

sykono, Getty Images

A standard solution is any chemical solution which has a precisely known concentration. Similarly, a solution of known concentration has been standardized. To prepare a standard solution, a known mass of solute is dissolved and the solution is diluted to a precise volume.

Standard solution concentration is usually expressed in terms of molarity (M) or moles per liter (mol/L). Not all substances are suitable solutes for standard solutions. The reagent must be stable, pure, and preferably of high molecular weight.

Source

  • Freiser, Henry; Nancollas, George H. (1987). Compendium of Analytical Nomenclature: Definitive Rules 1987. Oxford: Blackwell Scientific Publications. p. 48. ISBN 0-632-01907-7.