Question #8eb47

1 Answer
Dec 14, 2014

The atomic mass units (amu) are a scale-set to 1/12th the mass of one atom of carbon-12.
They are what you would find as the "atomic mass" of an element on the periodic table.
example:
![http://chemwiki.ucdavis.edu](https://useruploads.socratic.org/3UMGdGLtSsKFpAVh8eXh_amu.png)

amu are extremely important because they help us to convert between mass and grams of an element or compound of elements in stoichiometry.
Rule: If you have one mole of any element you have a mass of the amu in grams.
1mol(element A)=(amu element A)grams

example:
1mol(He)=4.003grams