titration equation

[Mag]

consider the titration of 50 mL on 0.10M Sn2+ with 0.10M Tl3+

A) Wite the equation for the reaction that occurs between Sn2+ and Tl3+

Sn^2^++Tl^3^+\longrightarrow\ Sn^4^++Tl^+

Correct?

[chem_tr]

Thallium is most stable at 1+ oxidation state, and tin(II) ions are present to reduce it. Tin(IV) ions will be produced in this redox reaction, so your redox reaction is correct.

[Mag]

ok good.

what is the half cell potential after 5.00mL of Tl^3^+?

E_1_/_2=0.139-\frac{0.05196}{2}log\frac{1}{4.5}
E_1_/_2=0.156v

this right also?

[chem_tr]

The formula is something like that, but I don't remember the logarithm ratio in which you wrote 4.5. However, it seems okay.