Question

what is molecular mass... ​

Answer 1

Explanation:

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

Answer 2

Molecular Mass :

The molecular mass of a substance is the number of times the molecule of the substance is heavier than one-twelth the mass of an atom of carbon -12. Or, the molecular mass is equal to the sum of its atomic masses of all the atoms present in one molecule of a substance.

For eg: Water (H2O)

Atomic mass of H= 1 unitAtomic mass of O =16 units

The molecular mass of water = 2 × atomic mass of H+1 × atomic mass of O

= 2 × 1 + 16 × 1

= 18 units

Gram Molecular Mass:

The molecular mass of a substance expressed in grams is the gram molecular mass. For eg: Molecular mass of oxygen = 32u

∴Gram molecular mass of oxygen =32g

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