1. Cu, density p = 8.885 g c m ( − 3 ) {\displaystyle p=8.885gcm^{(}-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
