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A mixture which has uniform composition and properties throughout.

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Distillate

The material in a distillation apparatus that is collected in the receiver.

 

Dipole Moment

The product of the distance separating opposite charges of equal magnitude of the charge, a measure of the polarity of a bond or molecule, a measured dipole moment refers to the dipole moment of an entire molecule.

Hund's Rule

All orbitals of a given sublevel must be occupied by single electrons before pairing begins.

Concentration

Amount of solute per unit volume or mass of solvent or of solution.

Peroxide

A compound containing oxygen in the -1 oxidation state. Metal peroxides contain the peroxide ion, O22

Valence Shell Electron Pair Repulsion Theory

Assumes that electron pairs are arranged around the central element of a molecule or polyatomic ion so that there is maximum separation (and minimum repulsion) among regions of high electron density.

 

ytterbia

Ytterbia is a colorless compound, Yb2O3, used in certain alloys and ceramics. Also known as ytterbium oxide.

Alkynes

Unsaturated hydrocarbons that contain one or more carbon-carbon triple bonds.

Titration

A Procedure in which one solution is added to another solution until the chemical reaction between the two solutes is complete, the concentration of one solution is known and that of the other is unknown.

 

Unsaturated Hydrocarbons

Hydrocarbons that contain double or triple carbon-carbon bonds.