# Define 'Molecular Mass' of a Substance. - Science

Short Note

What is meant by saying that ‘the molecular mass of oxygen is 32’ ?

#### Solution

The statement, "the molecular mass of oxygen is 32", means that a molecule of oxygen is 32 times heavier than 1/12th of the mass of a ""^12"_6C atom.

Concept: Molecular Mass
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#### APPEARS IN

Lakhmir Singh Class 9 Chemistry - Science Part 2
Chapter 3 Atoms and Molecules
Very Short Answers | Q 19 | Page 129