Determine the potential of a platinum electrode immersed in a solution that is:
1. 0.0813M in K4Fe(CN)6 and 0.00566M inK3Fe(CN)6
2. 0.1996M in V(OH)4+ , 0.0789Min VO2+ , and 0.08M in HClO4.
3. Buffered to a pH of 5.55 and saturated with H2 at 1.00 atm.