A sample of copper with a mass of 63.5 g contains 6.02*10^23 atoms. Calculate the mass of a single copper atom.
use conversion factors of Mol=6.022 *10^23 atoms and 1 Mol (cu) = 63.546g (cu)
(63.5)/(6.02*10^23)
=10.5481276*10^-23
=1.0548 * 10^-22 grams per atom
