A 10.00 mL solution of 0.0500 M AgNO₃ was titrated with 0.0250 M NaBr in the cell: S.C.E.(saturated calomel electrode) titration solution Ag (s). (K_{sp AgBr(s)} = 5.0 x 10¹³)

1. Find the cell voltage (v) when the volume of titrant added is 5.00 mL.

2. Find the equivalence volume (mL) of titrant added.

3. Calculate the cell voltage (v) at the equivalence point.

4. Calculate the cell voltage (v) when the volume of titrant added is 22.74 mL.