The titration of a 50.00 mL aqueous sample of Fe2+ with 0.09533 M Ce4+ gives the following cell potentials when using a...

The titration of a 50.00 mL aqueous sample of Fe²⁺ with 0.09533 M Ce⁴⁺ gives the following cell potentials when using a platinum indicator electrode and silver-silver chloride reference electrode. Use a Gran plot to determine the concentration of Fe²⁺ in this sample.