Question

why is molecular mass sometime expressed in g/mol​

Answer 1

Explanation:

However, for historical reasons, molar masses are almost always expressed in g/mol. The mole was defined in such a way that the molar mass of a compound, in g/mol, is numerically equal (for all practical purposes) to the average mass of one molecule, in daltons.

Answer 2

Answer:

molar masses are almost always expressed in g/mol.

The mole was defined in such a way that the molar mass of a compound, in g/mol, is numerically equal (for all practical purposes) to the average mass of one molecule, in daltons