What is the difference between molecular mass and formula unit mass?
1 Answer
Aug 14, 2017
The same as the difference between molecules and ionic compounds...
- Molecular mass is used for molecules, i.e. covalently-bonded multi-atomic substances.
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- Formula unit masses are used to describe ionic compounds, i.e. ionically-bonded compounds found as lattice structures. One formula unit of sodium chloride,
NaCl , is found in...
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It makes no physical sense to prescribe a molecular mass to
