What is the correct definition of a mole?

A mole is defined as the amount of a substance that contains exactly 6.02214076 X1023 elementary entities of the given substance. Thus, a mole of a substance is referred to as the mass of a substance containing the same number of fundamental units as atoms in exactly 12.000 g of 12C.

  • The following formula can represent the number of moles of a substance in a given pure sample:

    n = N/NA

  • n is the number of moles of the substance
  • NA is the Avogadro constant.

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