Avogadro number


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A·vo·gad·ro num·ber (Λ, NA),

(ah-vō-gahd'rō),
the number of molecules in 1 gram-molecular weight (1 mol) of any compound; defined as the number of atoms in 0.0120 kg of pure carbon-12; equivalent to 6.0221367 × 1023.
Synonym(s): Avogadro constant
[Amadeo Avogadro]

A·vo·gad·ro num·ber

(NA, λ) (ah-vō-gahd'rō nŭm'bĕr)
The number of molecules in 1 gram-molecular weight (1 mol) of any compound; defined as the number of atoms in 0.0120 kg of pure carbon 12; equivalent to 6.0221367 × 1023.
Synonym(s): Avogadro constant.
[Amadeo Avogadro]

Avogadro number

The number of molecules, 6.0221367×1023, in one gram molecular weight of a compound.

Avogadro,

Amadeo, Italian physicist, 1776-1856.
Avogadro constant - Synonym(s): Avogadro number
Avogadro hypothesis - Synonym(s): Avogadro law
Avogadro law - equal volumes of gases contain equal numbers of molecules, the conditions of pressure and temperature being the same. Synonym(s): Ampère postulate; Avogadro hypothesis; Avogadro postulate
Avogadro number - the number of molecules in one gram-molecular weight (1 mol) of any compound. Synonym(s): Avogadro constant
Avogadro postulate - Synonym(s): Avogadro law
References in periodicals archive ?
In Japan and Russia, scientists are levitating masses with superconductors; in Germany, experimenters are debugging a vacuum Faraday system, whereby gold atoms beamed onto a collector yield an electric constant, from which an Avogadro number can be derived.
where [N.sub.A] is the Avogadro number, [Gamma] is an overlap factor that varies from 0.5 to 1, and [v.sup.*] is a critical volume that is equal to or greater than the van der Waals volume of the chromophore.