Titration of 25.00 mL of 0.050 M Sn2+ with 0.100 M Fe3+ in 1 M HCl to give Fe2+ and Sn4+ using Pt and Ag/AgCl electrodes.
The balanced titration reaction is follows:

Sn2+ + 2Fe3+ ⇌ Sn4+ + 2Fe2+

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! = 0.732 V; �!"!!
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! = 0.139 V

3.1.Write two half-reactions for the indicator electrode.
3.2.Write two Nernst equations for the cell voltage
3.3. Calculate electrical potential (E) at the following volumes of Fe3+: 1.0, 25.0, and 26.0 mL.

solute : a solute is a substance that is dissolved in another substance is known as a solvent. it is mixed with a special mixture know as homogeneous mixture.

solvent: a solvent is a substance that dissolved a solute, which results in a solution is known as solvent.

the positions which points up in upward carbon and down in downward carbon are axial

and vice versa holds true for equatorial positions

so the correct answer with labelled diagram will be

i do not get it   at all