A manufacturer wants to create a standard-condition galvanic cell whose standard cell potential is as close as possible to +1.10V, while using only the half-reactions in the table below. Any given half-reaction may be used once, reversed if necessary, and multiplied by an integer as required for electron balance.
Standard reduction potentials (25∘C):
(a) Identify a pair of half-reactions from the table that, when combined appropriately, produces an overall Ecell∘ whose magnitude is the closest to +1.10V. State which half-reaction is written as a reduction and which is written as an oxidation.
(b) Balance the chosen half-reactions for electrons, combine them into a single overall redox equation, and calculate the exact value of Ecell∘.
(c) Compute the corresponding standard free-energy change ΔG∘ (in kJ mol⁻¹) for the balanced overall reaction from part (b).
(d) Evaluate whether the cell you designed meets the manufacturer’s target to within ±0.05V. If the target is not met, propose a justification for why no combination of the provided half-reactions can achieve an Ecell∘ within that tolerance.