Cu, density ρ = 8.885 g c m 3 {\displaystyle \rho =8.885{g \over cm^{3}}} , atomic mass m a = 63.57 a m u {\displaystyle m_{a}=63.57amu} , fcc structure
a. In 1 m 3 {\displaystyle 1m^{3}} , the number of moles is 8.885 g c m 3 1 c m 3 / o v e r ( 1 e − 6 m 3 ) x 1 m o l / o v e r ( 63.55 g ) = 1.40 e 5 m o l / o v e r m 3 {\displaystyle 8.885{g \over cm^{3}}{1cm^{3}/over(1e-6m^{3})}x{1mol/over(63.55g)}=1.40e5{mol/overm^{3}}}
