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The solvent used in the process of elution, as in liquid chromatography.

 

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Aldehyde

Compound in which an alkyl or aryl group and a hydrogen atom are attached to a carbonyl group and a hydrogen atom are attached to a carbonyl group, general formula, O-R-C-H

 

Binary Acid

A binary compound in which H is bonded to one or more of the more electronegative nonmetals.

Heterogeneous Mixture

A mixture that does not have uniform composition and properties throughout.

Emulsifying Agent

A sustance that coats the particles of the dispersed phase and prevents coagulation of colloidal particles, an emulsifier.

Semiconductor

A substance that does not conduct electricity at low temperatures but does so at higher temperatures.

Ideal Gas Law

The product of pressure and the volume of an ideal gas is directly proportional to the number of moles of the gas and the absolute temperature.

Electron Configuration

Specific distribution of electrons in atomic orbitals of atoms or ions.

Absorption Spectrum

Spectrum associated with absorption of electromagnetic radiation by atoms (or other species) resulting from transitions from lower to higher energy states. An absorption spectrum is the inverse of an emission spectrum.

Equilibrium Constant

A quantity that characterizes the position of equilibrium for a reversible reaction, its magnitude is equal to the mass action expression at equilibrium. K varies with temperature.

Structural Isomers

Compounds that contain the same number of the same kinds of atoms in different geometric arrangements.