Not shown in Figure 22-17 are electrode potential data involving hydrazoic acid. Given that E° = -3.09 V for the reduction of HN₃ to N₂ in acidic solution, what is E° for the reduction of HN₃ to NH₄⁺ in acidic solution?

Figure 22-17

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Acidic solution ([H+] = 1 M): +5 +4 +3 +2 +1 0 -1 0.803 V 1.065 V 0.996 V 1.591 V 1.766 V -1.87 V 1.275 V NO3-N₂O4 HNO2 — NON₂ON₂NH3OH+—N₂H5+————— NH4+ Basic solution ([OH-] = 1 M): +5 +4 +3 +2 -0.86 V 0.867 V -0.46 V 0.76 V -N2O4 NO₂ NO NO3-N204- - +1 0 0.94 V 3.04 V -2 1.42 V -1 -2 0.73 V -3 -3 0.10 V N₂ON₂NH₂OHN₂H4NH3