what is difference between atomic mass and molecular mass

Asked by bansi | 16th Nov, 2015, 12:19: PM

Expert Answer:

The atomic mass corresponds to the mass of an element, while the molecular mass corresponds to the mass of a chemical compound.
For example:
Mass of carbon is referred as an the atomic mass. Atomic mass of carbon is 12.0107 amu
But CO2 is a molecule, hence mass of this compound is referred as molecular mass instead of atomic mass.
Molecular mass is the total sum of the atomic masses of all the elements present in the molecule.
Molecular mass of CO2 the sum of the atomic masses of one carbon atom and two oxygen atoms which is 44.01 u.

Answered by Prachi Sawant | 17th Nov, 2015, 09:03: AM