Construct a coulometric titration curve of 100.0 mL of a 1 M H₂SO₄ solution containing Fe(II) titrated with Ce(IV) generated from 0.075 M Ce(III). The titration is monitored by potentiometry. The initial amount of Fe(II) present is 0.05182 mmol. A constant current of 20.0 mA is used. Find the time corresponding to the equivalence point. Then, for about 10 values of time prior to the equivalence point, use the stoichiometry of the reaction to calculate the amount of Fe³⁺ produced and the amount of Fe²⁺ remaining. Use the Nernst equation to find the system potential. Find the equivalence-point potential in the usual manner for a redox titration. For about 10 times after the equivalence point, calculate the amount of Ce⁴⁺ produced from the electrolysis and the amount of Ce³⁺ remaining. Plot the curve of system potential versus electrolysis time.