Problem 1: Calculate the open circuit potential of the following electrochemical reactions (you may need to balance the equations with different species associated with water such as H, OH and H.O. you can just ignore their contributions to the open circuit potential as they are 'non-participants' in the reactions): HO, + Ni HO + Ni H0+ Mg H,O, + Mg Ni + PbO, Pb + Ni?" Al + OH- +Al+O - - W f 16tt\/