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Amine in which the nitrogen is part of a ring.

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Standard Entropy

The absolute entropy of a substance in its standard state at 298 K.

Formula Weight

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

 

Calorie

The amount of heat required to raise the temperature of one gram of water from 14.5°C to 15.5°C. 1 calorie = 4.184 joules.

Proton

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

Henry's Law

The pressure of the gas above a solution is proportional to the concentration of the gas in the solution.

Electronic Geometry

The geometric arrangement of orbitals containing the shared and unshared electron pairs surrounding the central atom of a molecule or polyatomic ion.

Isomorphous

Refers to crystals having the same atomic arrangement.

Fluorescence

Absorption of high energy radiation by a substance and subsequent emission of visible light.

Chemical Hygiene Plan (CHP)

A written program developed and implemented by an employer designating proceedures, equipment, personal protective equipment, and work practices that are capable of protecting employees from the health hazards presented by hazardous chemicals usid in that particular workplace.

Cation

A positive ion, an atom or group of atoms that has lost one or more electrons.