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Learn Chemistry: Glossary

Description

A glossary for Learn Chemistry explaining the meaning of chemistry terms used within this site.

Type of Activity

:
group work, working independently

Audience

:
TeacherStudent

Age Group

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16 to Undergraduate
learn-chemistry-glossary
Term Definition
Accuracy The 'closeness' of a measurement to the true value.
Acetic acid The trivial name for ethanoic acid.
Acetone The trivial name for propanone.
Acid wash A technique where a dilute solution of acid is used to extract basic compounds out of an organic solution using a separating funnel.
Aliquot A portion of solution, usually measured with a volumetric pipette.
Analyte A substance that is determined in a quantitative procedure such as volumetric analysis.
Anti-bumping granule Small pieces of a ceramic material that are added to solutions to prevent the solution 'bumping' (see also).
Aqueous wash A technique where water is used to extract ionic impurities out of an organic solution using a separating funnel.
Aspirator Also known as a filter pump, a device that produces a vacuum (reduced pressure) usng a flow of tap water. This can be used in Buchner filtrations, vacuum distillations or with rotary evaporators.
Azeotrope A mixture of two or more liquids that cannot be separated by simple distillation. An application of this is the addition of a second solvent to a solution to produce a lower boiling azeotrope of the two solvents which is easier to remove by evaporation.