Sat November 24, 2012 By: Pramod

how can we make mole concept easier to learn or understand

Expert Reply
Fri November 30, 2012

For an atom,

1 mole = Gram atomic mass of atom = 6.022 x 1023 atoms

For a molecule,

1 mole = Gram molecular mass of molecule = 6.022 x 1023 molecules

i.e. In terms of mass,


In terms of volume,

1 mole = 22.4 L of a gas at NTP

6.022 X 1023 is actually called the Avogadro number or Avogadro constant (represented by NA or NO) in honour of Italian scientist Amadeo Avogadro.

The important formulae of the mole concept are:


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