What are the units for atomic weight?
For example: "Calculate the mass of 5.0 moles of water.
When I add up the 2 hydrogens and the 1 oxygen, what unit would I use after the 2.01588 and the 15.9994?

Also, what would be the unit for my answer the mass?
Would it be grams H2O or g/mol? Something else?

Question

What are the units for atomic weight?
For example: "Calculate the mass of 5.0 moles of water.
When I add up the 2 hydrogens and the 1 oxygen, what unit would I use after the 2.01588 and the 15.9994?

Also, what would be the unit for my answer the mass?
Would it be grams H2O or g/mol? Something else?

mertsj · Answer

atomic mass units.

mertsj · Answer

But then when it says to calculate the mass of 5 moles of water, you must know the definition of mole:  a mole is the atomic weight  IN GRAMS.
So 5 moles of water = 90 grams

anonymous · Answer

Thanks for the reply! Sorry I posted this question in math instead of chem, I'm new here! :)

mertsj · Answer

yw