ekvivalenstipistettä

Ekvivalenstipistettä is a Finnish term that translates to "equivalence point" in English and refers to a critical point in chemical titrations. It is the point at which the amount of titrant added to a sample is stoichiometrically equivalent to the amount of analyte present in the sample. In simpler terms, it's the precise moment when the reaction between the titrant and the analyte is theoretically complete.

Titration is a common analytical chemistry technique used to determine the unknown concentration of a substance. A solution of known concentration, called the titrant, is gradually added to a solution of unknown concentration, the analyte, until the reaction between them is just complete. The equivalence point is a theoretical concept that is usually detected experimentally using an indicator or an instrument that monitors a physical property of the solution, such as pH or conductivity.

The experimental point at which the equivalence is detected is known as the endpoint. Ideally, the endpoint should coincide with the equivalence point. However, slight differences can occur due to the limitations of indicators or measurement devices. The accuracy of a titration relies on how closely the endpoint matches the equivalence point. Understanding and accurately determining the equivalence point is fundamental for calculating the concentration of the analyte with high precision.