Ferrocene is an organometallic complex that contains iron sandwiched between two five-membered cyclopentadiene rings (C5H5). Ferrocene methanol, a derivative, is another convenient redox couple used in electrochemistry. Sketch and interpret the cyclic voltammogram for the ferrocene methanol couple (Fc+/Fc) measured with respect to SHE; the standard redox potential is 0.64 V.

K124.

Use standard reduction potentials to calculate the equilibrium constant for the reaction: I₂ (s) + 2Ag(s) → 21¯ (s) + 2Ag+ (aq) 0.535 V, EAgt/Ag From the table of standard reduction potentials: E 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. = = 0.799 V

Mn(s)|Mn2+(aq)||Cr3+(aq)| Cr(s) Calculate the cell potential at 25oC if the concentration of Mn2+(aq) is 2.40 M and the concentration of Cr3+(aq) is 0.500 M. Report your answer to 3 significant figures. Use theStandard Reduction Potentials Table as needed.

Use standard reduction potentials to calculate the equilibrium constant for the reaction:Co2+(aq) + Cu(s) Co(s) + Cu2+(aq)Hint: Carry at least 5 significant figures during intermediate calculations to avoid round off error when taking the antilogarithm.Equilibrium constant: G° for this reaction would be       than zero.

Calculate the cell potential for the reaction as written at 25.00 °C, given that [Cr2+]=0.876 M and [Ni2+]=0.0130 M Cr(s)+Ni2+(aq)↽−−⇀ Cr2+(aq)+Ni(s)

Use standard reduction potentials to calculate the standard free energy change in kJ for the reaction: 2H+ (aq) + Hg(1)→ H₂(g) + Hg²+ (aq) 2H+ (aq) + 2e¯ → H₂(g) Fº red 2+ Hg2 (aq) + 2e¯ → Hg(1) AGO = || kJ K for this reaction would be Eº red = 0.000 V = = 0.855 V than one.

Use the standard reduction potentials located in the 'Tables' linked above to calculate the equilibrium constant for the reaction: Cd2+(aq) + Fe(s) >> Cd(s) + Fe²+(aq) Hint: Carry at least 5 significant figures during intermediate calculations to avoid round off error when taking the antilogarithm. You may use the OWL references to find the values for physical constants. Equilibrium constant: AG° for this reaction would be than zero.