Chemistry
Grade-9
Easy
Question
Molecular mass is the mass of one molecule of a substance expressed in _________.
- Grams
- Kg
- Amu
- Moles
Hint:
The molecular mass (m) is the mass of a given molecule.
The correct answer is: Amu
Molecular mass is a number equal to the sum of the atomic masses of the atoms in a molecule. The molecular mass gives the mass of a molecule relative to that of the 12C atom, which is taken to have a mass of 12. Molecular mass is a dimensionless quantity, but it is given the unit Dalton or atomic mass unit.
Molecular mass is the mass of one molecule of a substance expressed in amu.
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