What is the difference between molecular mass and formula unit mass? Explain with example.
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Sum of atomic masses of all the atoms as present in empirical or simple formula of a compound is called formula mass. As e.g. NaCl, 23 + 35.5 = 58.5 amu.
Similarly sum of atomic masses of all the atoms as present in the molecular formula of that compound is called molecular mass. As e.g. H2O, is 1 x 2 + 16 = 18 amu.
Similarly sum of atomic masses of all the atoms as present in the molecular formula of that compound is called molecular mass. As e.g. H2O, is 1 x 2 + 16 = 18 amu.
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