Chemistry
Grade-9
Easy

Question

______ is the sum of atomic masses of the elements present in a molecule.

  1. Molecular mass
  2. Average atomic mass
  3. Molar mass
  4. Gram molar mass

hintHint:

Molecular mass is a number equal to the sum of the atomic masses of the atoms in a molecule.

The correct answer is: Molecular mass


    Molecular mass is a number equal to the sum of the atomic masses of the atoms in a molecule. The molecular mass gives the mass of a molecule relative to that of the 12C atom, which is taken to have a mass of 12. Molecular mass is a dimensionless quantity, but it is given the unit Dalton or atomic mass unit.
    Also, molecular mass is the sum of atomic masses of the elements present in a molecule.

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