Answer to Question #20473 in Other Chemistry for Bob
How many moles of silver atoms are in 1.8 * 10^20 atoms of silver?
N - number of atoms
Na- Avogadro Constant
n-amount of element (compound) with some Molecular weight ( Mw )
n=N*Mw / Na.
Using this formula or trivial equation below
108 & 6.02x10^-23
n=108*1.8^20 / 6.02x10^23=0.0323 moles