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"
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References in periodicals archive ?
where [N.sub.A] is the Avogadro number, M is molar mass, R* is mean radius of the spheres, and [E.sub.vis] is activation energy.
where r is the rate of reaction, [DELTA][H.sup.o.sub.a] is the enthalpy of activation at standard condition, [DELTA][S.sup.o.sub.a] is the entropy of activation at standard condition, h is Planck's constant, and N is the Avogadro number.
Archakov, "AFM-based technologies as the way towards the reverse Avogadro number," Biochemistry (Moscow) Supplement Series B: Biomedical Chemistry, vol.