Question

Difference between Molecular Mass and Formula unit mass​

Answer 1

Molecular Mass:

The molecular mass (m) is the mass of a given molecule: it is measured in daltons (Da or u). Different molecules of the same compound may have different molecular masses because they contain different isotopes of an element.

Formula unit mass:

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

Answer 2

Answer:

(1) sum of the atomic masses through of all atoms in a molecule of the substance.

(2) expressed in atomic mass unit

(Q). unit mass formula: sum of atomic masses of all atoms in a formula unit of a compound.

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