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Atoms and Molecules — Science STD 9 — Question

CBSE BoardEnglish MediumSTD 9ScienceAtoms and Molecules1 Mark
Question
Define the term ‘molecular mass'.
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Answer

The molecular mass of a substance is the relative mass of its molecule as compared to the mass of the Carbon-12 atom taken as 12-units. Molecular mass is the total mass of a compound. It is equal to the sum of the atomic masses or mass numbers of each element present in a compound or molecule.

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