Use standard reduction potentials to calculate the equilibrium constant for the reaction: Pb2+ (aq) + Sn(s) → Pb(s) + Sn'(aq) Pb + (aq) + 2e → Pbs) Erd - -0.126 V Sn+ (ag) + 2e → Sn(s) E° red = -0.140 V Hint: Carry at least 5 significant figures during intermediate calculations to avoid round off error when taking the antilogarithm. Equilibrium constant at 298 K: AG° for this reaction would be

Determine E°, AG°, and K for the overall reaction from the balanced half-reactions and their standard reduction potentials. 4 Fe3+ + 2 H,0 4 Fe²+ + O, + 4H+ Fe3+ + e-= Fe²+ E° = 0.771 V 0, + 2 H* + 2 e¯2 H,0 E° = 1.229 V E° = V K = Is the overall reaction spontaneous as written? AG° = spontaneous not spontaneous

Use standard reduction potentials to calculate the equilibrium constant for the reaction: 2Ag (aq) + Fe(s) → 2Ag(s) + Fe²+ (aq) Ag+ (aq) + e → Ag(s) E red Fe2+ (aq) + 2e → Fe(s) E red www 0.799 V -0.440 V Hint: Carry at least 5 significant figures during intermediate calculations to avoid round off error when taking the antilogarithm. Equilibrium constant at 298 K: AGO for this reaction would be than zero.

Using standard reduction potentials from the ALEKS Data tab, calculate the standard reaction free energy AG° for the following redox reaction. Round your answer to 3 significant digits. 3+ N,H, (aq) +40H (aq)+4Fe" (aq) → N, (g) +4H,0(1) +4Fe“" (aq) kJ ?

Using standard reduction potentials from the ALEKS Data tab, calculate the standard reaction free energy AG° for the following redox reaction. Be sure your answer has the correct number of significant digits. I, (s) + 6H,0 (1) + 10Cu* (aq) → 210, (aq)+12H* (aq)+ 10C'* (aq)

Consider the following two half-reactions and their standard reduction potentials. N2(g) +H,0(1) E° = 1.766 V MnO, (s) + 2H,0(1) E° = 1.673 V N,0(g) + 2H*(aq) + 2e¯ → MnO,(aq) + 4H*(aq)+3e¯ 1st attempt l See Calculate E°for the spontaneous redox reaction that occurs when these two half-reactions are coupled. V

is 0.085 correct or should it be 0.116? I got two answers and i’m not sure.

3.) Consider the following standard reduction potentials, which statement is correct at standard conditions? Ni?* (aq) + 2 e → Ni (s) E°red = -0.26 V I2 (s) + 2 e -> 2 (aq) E°red = 0.54 V I. Ni²* (aq) is a stronger oxidizing agent than I2 (s), and I is a stronger reducing agent than Ni (s) II. I2 (s) is a stronger oxidizing agent than Ni2", and Ni (s) is a stronger reducing agent than I (aq) III. Ni (s) is a stronger oxidizing agent than I (aq), and Ni2* is a stronger reducing agent than I2 (s) IV. I(aq) is a stronger oxidizing agent than Ni (s), and I2 (s) is a stronger reducing agent than Ni2+ (aq) А. IV В. Ш С. П D. I

Complete and balance the following half-reaction in acidic solution. Be sure to include the proper phases for all species within the reaction. S2O3² (aq) → S4O6²¯(aq) 1 + 4- 2 Reset 0₂ H OH- ų 3 ( ) 0²- 4 e S 5 6 05 ☐6 1L (s) H+ 2+ H₂O 8 18 4+ x H₂O 0 ☐ ☐o (1) (g) (aq) H3O+ Delete

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