?Using the standard reduction potentials listed in Appendix E, calculate the equilibrium

Chapter 20, Problem 20.55

(choose chapter or problem)

Using the standard reduction potentials listed in Appendix E, calculate the equilibrium constant for each of the following reactions at 298 K:

(a) \(\mathrm{Fe}(s)+\mathrm{Ni}^{2+}(a q) \longrightarrow \mathrm{Fe}^{2+}(a q)+\mathrm{Ni}(s)\)

(b) \(\mathrm{Co}(s)+2 \mathrm{H}^{+}(a q) \longrightarrow \mathrm{Co}^{2+}(a q)+\mathrm{H}_{2}(g)\)

(c) \)10 \mathrm{Br}^{-}(a q)+2 \mathrm{MnO}_{4}^{-}(a q)+16 \mathrm{H}^{+}(a q) \longrightarrow\)

\(2 \mathrm{Mn}^{2+}(a q)+8 \mathrm{H}_{2} \mathrm{O}(l)+5 \mathrm{Br}_{2}(l)\)

Text Transcription:

Fe(s) + Ni 2+(aq) longrightarrow Fe2+(aq) + Ni(s)

Co(s) + 2 H+(aq) longrightarrow Co2+(aq) + H2(g)

10 Br-(aq) + 2 MnO4 -(aq) + 16 H+(aq) longrightarrow 2 Mn2+(aq) + 8 H2O(l) + 5 Br2(l)