Mole Number/Avogardo number

The number of particles in 1 mole is known as mole number.
The number is 6.023×10^23.This number is called Avogardo number.

For atom ,the atomis weight of the atom contain avogardo number of atoms.
For example Oxygen atom whose atomic weight is 16,
So 16 g of O atom contain 6.023×10^23 number of oxygen atom.
And at S.T.P the volume occupay by Avogsrdo number is 22.4L.
For molecule,
The molecular weight contain Avogardo number i,e. 6.023×10^23 number of molecule and at S.T.P occupy the volume 22.4L.
For example Nitrogen molecule (N2) the molecular weight is =14,
So 14 g of Nitrogen molecule contain Avogardo number of Nitrogen molecule.



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