Titrimetric Methods Flashcards
refers to that group of analytical techniques which takes advantage of titers or concentrations of solutions.
Titrimetry
establishes a quantity of analyte using volumes of reagents of known concentrations and the knowledge of the stoichiometry of the reactions between the reagents and the analytes.
Volumetric titrimetry
determines the quantity of analyte by a measure of the mass of a solution of known concentration.
Gravimetric titrimetry
arrives at the amount of analyte by measuring the number of coulombs or total charge required to complete a reaction with the
Coulometric titrimetry
is the point where sufficient titrant has been added to be stoichiometrically equivalent to the amount of analyte.
Equivalence point
is the point at which some detection technique tells you that chemical equivalence has been reached
End point
is a high purity compound that serves as a reference material in all volumetric and mass titrimetric methods
Primary Standard
is a process in which the concentration of a secondary standard is determined to a high level of accuracy by titration with a primary standard.
Standardization
The total number moles of a solute (regardless off it’s chemical state) in one liter of solution
Analytical Molarity
The number moles of a particular species at equilibrium in one liter of solution. In order to calculate this we need to know something about the solutes’ behavior in the solvent
Equilibrium or Species Molarity (cM)
Expresses the mass of a substance per unit volume.
Density
The ratio of the mass of a substance to the mass of an equal volume of water ( at a specified temperature, 40C).
Specific gravity
In this technique, the volume of titrant delivered is weighed and the moles delivered calculated from the “weight molarity“
Weight Titrations
