Question

Determine ????∘ , Δ????∘ , and K for the overall reaction from the balanced half-reactions and their standard reduction potentials. 2Co3+H3AsO3+H2O ↽−−⇀ 2Co2++H3AsO4+2H+Co3+e−↽−−⇀ Co2+ ????∘=1.92H3AsO4+2H+2e−↽−−⇀ H3AsO3+H2O????∘=0.575????∘=_________ ?K= _________?Δ????∘= _________?Is the overall reaction spontaneous as written? not spontaneous spontaneousDetermine ????∘E∘, Δ????∘ΔG∘, and KK for the overall reaction from the balanced half-reactions and their standard reduction potentials.4Fe3++2H2O↽−−⇀ 4Fe2++O2+4H+Fe3++e−↽−−⇀ Fe2+ ????∘=0.771 V1/2O2+2H++2e− ↽−⇀ H2O????∘=1.229V????∘=_________K=_________Δ????∘=_________Is the overall reaction spontaneous as written?
A. spontaneous


B. not spontaneous

Answer 1

Answer:

(a) E₀ = 1.35 V

    K = 3.28*10^45

    ΔG₀  = -260 kJ

(b) E₀ = -0.458 V

    K = 1.00*10^-31

    ΔG₀    = 177 kJ

   

Explanation:

See the attached file for the calculation.