What is the SI unit for molar mass?

a. gram.

c. mole.

b. gram/mole.

d. mole/gram.

The answer your looking for is C or D

The molar mass M is a physical property defined as the mass of a given substance (chemical element or chemical compound) divided by its amount of substance.

The base SI unit for molar mass is kg/mol. However, for historical reasons, molar masses are almost always expressed in g/mol.

So the answer is gram/mole