Question

How many moles of copper are equivalent to `3.44*10^23` atoms of copper?

Answer 1

`0.571 " mol."`

Explanation:

First you need to find the conversion factor. We know that 1 mol. contains Avogadro's number of atoms and therefore our conversion factor will be:

`\ 1 " mol." = 6.02xx10^23 " atoms"`

`3.44xx10^23 \ "atoms" xx (1 \ "mol.")/(6.02xx10^23 \ "atoms")`

`3.44xx10^23\ cancel("atoms") xx (1 \ "mol.")/(6.02xx10^23 \ cancel("atoms"))`

`0.571 " mol."`