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The mass of one formula unit of a substance in atomic mass units.

 

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Phenol

Hydrocarbon derivative containing an [OH] group bound to an aromatic raing.

 

Thermal Cracking

Decomposition by heating a substance in the presence of a catalyst and in the absence of air.

 

Saccharic acid

A white, needlelike, crystalline, water-soluble solid or syrup, C6H10O8, usually made by the oxidation of cane sugar, glucose, or starch by nitric acid. Also called "Glucaric acid."

Molecular Formula

Formula that indicates the actual number of atoms present in a molecule of a molecular substance.

Atmosphere

A unit of pressure, the pressure that will support a column of mercury 760 mm high at 0 °C.

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.

Chemical Periodicity

The variations in properties of elements with their position in the periodic table.

Polarization

The buildup of a product of oxidation or a reduction of an electrode, preventing further reaction.

Ideal Solution

A solution that obeys Raoult's Law exactly.

Coefficient of expansion

The ratio of the change in length or volumen of a body to the original lengthor volume for a unit change in temperature.