H3AsO4(aq) + + Zn2+(aq) (acidic) Zn(s) → AsH3(g) 8H+ + H2AsO4 + 4Zn AsH3 + 4 Zn2+ + 4 H2O Using the half reactions, calculate the free energy of the reaction. Al3+(aq) + 3e- Al (s) E°= -1.66 V Au3+ + 3e-(aq) Au (s) E°= 1.50 V E= 3.16 G= -nFE = (-3) (96485) (3.16)= -915000 J
H3AsO4(aq) + Zn(s) → AsH3(g) + Zn2+(aq) (acidic) 8H+ + H2AsO4 + 4Zn AsH3 + 4 Zn2+ + 4 H2O Using the half reactions, calculate the free energy of the reaction. Al3+(aq) + 3e- Al (s) E°= -1.66 V Au3+ + 3e-(aq) Au (s) E°= 1.50 V E= 3.16 G= -nFE = (-3) (96485) (3.16)= -915000 J
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