Titration Terminology

Question 1

An accurately known volume of liquid. In titration, this usually refers to the liquid transferred via pipette into the conical flask.

Answer 1

Aliquot

Question 2

A substance being analysed. In titration, this is usually a solution of unknown concentration.

Answer 2

Analyte

Question 3

A two-stage analysis in which an excess of reactant is added to the analyte, then the excess is determined to calculate the concentration of the analyte.

Answer 3

Back titration

Question 4

A graduated piece of glassware which dispenses measured amounts of solution (the titrant).

Answer 4

Burette

Question 5

The point in a titration when the indicator permanently changes colour.

Answer 5

Endpoint

Question 6

Same concentration.

Answer 6

Equimolar

Question 7

The point in a neutralisation reaction when the amounts of reactants are just sufficient to consume both reactants, without an excess of either (i.e., in stoichiometric ratio).

Answer 7

Equivalence point

Question 8

A piece of glassware used to transfer a very accurately measured volume of solution.

Answer 8

Pipette

Question 9

A substance of sufficiently high purity and stability that a solution of accurately known concentration can be prepared by weighing out the desired mass, dissolving in water, and making the volume up to a known value.

Answer 9

Primary standard

Question 10

The solution to which another reagent (the titrant) is added during a titration (usually in a conical flask).

Answer 10

Titrand

Question 11

The solution that is added during a titration (usually from a burette).

Answer 11

Titrant

Question 12

The volume of titrant used in a titration.

Answer 12

Titre

Question 13

A piece of glassware which can hold a set volume of solution very accurately.

Answer 13

Volumetric flask