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Sia ? 4 years, 7 months ago
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.
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