As of Version 9.0, physical constant functionality is built into the Wolfram Language

is the number of molecules in one mole or gram molecular weight of a substance.


  • To use AvogadroConstant, you first need to load the Physical Constants Package using Needs["PhysicalConstants`"].
  • AvogadroConstant is given in units of Mole^-1.
  • Avogadros constant is approximately 6.02214199×1023Mole^-1.
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