What is molecular weight

1.	What is molecular weight
Answer» Thanks<br>Molecular mass / WEIGHTThe molecular mass of a substance is the number of times the molecule of the substance is heavier than one twelfth the mass of an atom of carbon -12. or The molecular mass is equal to sum of its atomic masses of all the atoms present in one molecule of substance. For Example : Mass of H= 1 u Atomic mass of O =16 u Molecular mass of water =2 × atomic mass of H+1 × atomic mass of O =2 × 1 + 16 × 1 = 18 u

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