Hanna-instruments HI 904 Manuel d'utilisateur télécharger pdf (Page 179)

TITRATION THEORY

Spectrophotometric Titration

A titration in which the end point is marked by a change in the color and/or color

intensity.

Stoichiometry

The quantitative relationship of the reactants and products in a chemical reaction.

Titrant

The chemical added in a titration that causes the given reaction to occur.

Titration

A quantitative, volumetric procedure used in analytical chemistry to determine the

concentration of an analyte in solution. The concentration of the analyte is determined

by slowly adding a titrant to the solution. As the titrant is added, a chemical reaction

between the titrant and the analyte occurs.

Titration Curve

A graph containing the physical data obtained for a titration. The data plotted is often

an independent variable (volume of titrant) vs. a dependent variable (pH of the solution).

From the titration curve, the equivalence point or end point can be determined.

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Hanna-instruments HI 904 Manuel d'utilisateur Page 179