Question
How formula unit mass is different from molecular mass?
| Formula mass | Molecular mass |
| Formula mass is the sum of the masses of atoms present in the empirical formula | Molecular mass of a molecule is the mass of a mole of that molecule |
| Calculated from amu units | Calculated from g/mol units |
| Calculated using the empirical formula | Calculated using the molecular formula |
| May or may not give the exact mass of a molecule | Always give the exact mass of a mole of molecules |
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