Molecular Mass and Formula Mass

Hello!

How are you all? Today we will discuss molecular mass and formula mass.

Molecular Mass:

The sum of atomic masses of all the atoms present in one molecule of a molecular substance, is it's molecular mass.

For example: molecular mass of water is 18 amu, chlorine is 71 amu and carbon dioxide is 44 amu.

Formula Mass:

The sum of atomic masses of all the atoms present in one formula unit of a substance.

For example: formula mass of sodium chloride is 58.5 amu and that of CaCO3 is 100 amu.

So this was the short introduction of basic terms. See you soon. Stay tuned.

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