Question

What is formula unit mass? How is it different from molecular mass?

Need ASAP!​

Answer 1

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The formula unit mass of a substance is a sum of the atomic masses of all atoms in a formula unit of a compound.

The constituent particles of formula unit mass are ions and the constituent particles of molecular mass are atoms.

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Answer 2

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Formula mass is defined as the sum of atomic masses of the ions present in the formula unit of an ionic compound while molecular mass is the sum of the atomic masses of the atoms in a molecule. Formula mass is more general term than molecular mass and maybe used in referring to all compounds but not the molecular mass.