How many moles of copper would be produced by reacting 34.0 grams of iron with copper(ii) chloride solution?

13.6 mol of CuCl2
 you wanna use the factor label 

There is one s orbital, and there are three p orbitals, five d orbitals, and seven f orbitals. thus, the answer is b. do not confuse the number of orbitals in a subshell with the number of electrons the subshell can hold. each orbital can hold two electrons, so the capacity of an nf subshell is 14 electrons.