In reference to a voltaic cell based on the following reaction: 4Fe2 (aq) O2(g) 4H (aq) 4Fe3 (aq) 2H2O(l) a. Determine the emf of the cell at standard conditions. b. Determine the voltage of the cell for the following conditions: [Fe2 ] = 1.3 M, [Fe3 ] = 0.01 M, PO2(g) = 1.0 atmand pH of solution in cathode half-cell = 4.