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Equilibrium constant that applies to the dissociation of a comples ion into a simple ion and coordinating species (ligands).

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Amino Acid

Compound containing both an amino and a carboxylic acid group.The --NH2 group.

Gangue

Sand, rock, and other impurities surrounding the mineral of interest in an ore.

Hess' Law of Heat Summation

The enthalpy change for a reaction is the same whether it occurs in one step or a series of steps.

Manometer

A two-armed barometer.

Atomic Radius

Radius of an atom.

Density

Density is the ratio b/w Mass and Volume: D=M/V

Liquid Aerosol

Colloidal suspension of liquid in gas.

Polymorphous

Refers to substances that crystallize in more than one crystalline arrangement.

Intermolecular Forces

Forces between individual particles (atoms, molecules, ions) of a substance.

Heat Capacity

The amount of heat required to raise the temperature of a body (of any mass) one degree Celsius.

Atomic Mass Unit (amu)

One twelfth of a mass of an atom of the carbon-12 isotope, a unit used for stating atomic and formula weights, also called dalton.

Oil

Liquid triester of glycerol and unsaturated fatty acids.

Cohesive Forces

All the forces of attraction among particles of a liquid.

Supercritical Fluid

A substance at temperature above its critical temperature.

Proton

A subatomic particle having a mass of 1.0073 amu and a charge of +1, found in thew nuclei of atoms.

Phosphorus Oxychloride

Colorless to slightly yellow fuming liquid.

Mol. Wt.: 153.39
M.P.: 20C
B.P.: 105.1C
Density: 1.685 @ 15.5C
Vapor Pressure: 40 mm @ 27.3C
Vapor Density: 5.3
Used as the phosphorus source for phosphorus diffusion.

Downs Cell

Electrolytic cell for the commercial electrolysis of molten sodium chloride. For further information see Electrochemistry or Fuel Cells.

Emulsion

Colloidal suspension of a liquid in a liquid.

Curie (Ci)

The basic unit used to describe the intensity of radioactivity in a sample of material. One curie equals 37 billion disintegrations per second or approximately the amount of radioactivty given off by 1 gram of radium.

Nuclides

Refers to different atomic forms of all elements in contrast to ?isotopes?, which refer only to different atomic forms of a single element.