Consider the titration of 25.0 mL25.0 mL of 0.050 0 M 0.050 0 M Sn2+Sn²⁺ with 0.100 M 0.100 M Fe3+Fe³⁺ in 1 M HCI M HCI to give Fe2+ Fe²⁺  and Sn4+, Sn⁴⁺ using PtPt and calomel electrodes.
a. Write a balanced titration reaction.
b. Write two half-reactions for the indicator electrode.
c. Write two Nernst equations for the cell voltage.
d. Calculate ЕE at the following volumes of Fe3+Fe³⁺: 1.0,1.0,12.5,12.5,24.0,24.0,25.0,25.0,26.0,26.0, and 30.0 mL. 30.0 mL. Sketch the titration curve.