Relation between molecular mass and molar mass

[rubenhero]

Homework Statement

What is the difference between molecular mass and molar mass? Are they related?

Homework Equations

moles = total mass/ mass/mole

The Attempt at a Solution

I can't find any explanation in my lecture notes.
I think that:
molecular mass = mass of one molecule
molar mass = mass of one mole of a molecule

I think they are related by if i took the molecular mass and multiplied it by the number of moles, I would get the molar mass.
Any help explaining these concepts is appreciated!

 

[Borek]

molecular mass = mass of one molecule

Correct, but in what units?

molar mass = mass of one mole of a molecule

Correct, but in what units?

I think they are related by if i took the molecular mass and multiplied it by the number of moles, I would get the molar mass.

I guess you mean "number of molecules in a mole", not "number of moles". You are not wrong, but you are still missing one important factor. Again, think about units used for both molar and molecular mass.

 

[chikis]

Is molar mass not the same thing as mass of one mole of the substance in question?

 

[Borek]

Is molar mass not the same thing as mass of one mole of the substance in question?

Yes it is.

But without using correct units you will be still off.

 

[chikis]

Yes it is.

But without using correct units you will be still off.

If that is the case the unit will be gram per mole i.e gmol-1. How about that?
Is relative molecular mass the same as molecular mass?