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CBSE Class 9 Answered

what is the difference between molecular mass and gram molecular mass?  
Asked by mohansharma8032 | 22 Jul, 2018, 11:28: AM
answered-by-expert Expert Answer

Molecular Mass

Gram Molecular Mass

It is a number equal to the sum of the atomic masses of all the atoms in a molecule.

It is relative to the 12C, which has a mass of 12.

It is the mass in grams of 1 mole of a molecular substance.

Example:

H2O has molecular mass 2+16=18

Example:

The molecular mass of N2 is 28 so gram molecular mass of N2 is 28.

Answered by Varsha | 23 Jul, 2018, 06:15: PM
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