PLEASE HELP SOON! How is the potential (voltage) of a redox reaction determined using the reduction potential chart? Calculate the voltage for the equation in 3(a).

3(a) is the half reactions for CuCl2 + Zn -> ZnZl2 + Cu

For the reaction shown, calculate how many moles of no2 form when each of the following completely reacts. 2n2o5(g)→4no2(g)+o2(g) part a 1.0 mol n2o5 express your answer using two significant figures. nothing mol m o l request answer part b 5.4 mol n2o5 express your answer using two significant figures.