Construct an Eh-pH diagram, at STP, for the progressive oxidation of cobalt (Co) to form oxides, starting from metallic cobalt. Indicate the stability fields of each of the cobalt species on the diagram. The reactions to be used are: CoO+2H++2eCo3O4+2H++2e=Co+H2O=3Co+H2O On the vertical axis, set -1.0 and +1.4 volts as the minimum and maximum Eh values, respectively. Also show the upper and lower stability limits of water on the same diagram (you can use lecture notes). For reactions involving Co, use the following thermodynamic data: G values (in kcal/mol : CoO=214.2Co3O4=772.6Co=0H2O=237.14H+=0e=0