posted by Andrea .
If 2.7 moles of copper metal was deposited from a solution of Cu(NO3)2, how many electrons were involved?
2.7moles of Cu is 2.7*Avag number of atoms..
each atom takes two electrons.
= 2*2.7*avagnumber*1.60217657 × 10-19
Well, I have went further than the question asked. Your teacher is too easy.