Avogadro number

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Noun1.Avogadro number - the number of molecules in a mole of a substance (approximately 602,250,000,000,000,000,000,000)
constant - a number representing a quantity assumed to have a fixed value in a specified mathematical context; "the velocity of light is a constant"
References in periodicals archive ?
Where, D is dose, OD is the difference in absorbance of irradiated and un-irradiated solutions at 304 nm, N is the Avogadro number (6.
o] is the Avogadro number, [sigma] is the interfacial tension, [gamma] is a numerical coefficient that has a value of ~4, [eta] is the viscosity of the liquid, k is the Boltzmann constant, T is the temperature, [r.
By definition, the Avogadro number relates macroscopic masses to atomic measurements," Taylor says.