If the Standard Potential for Tl³⁺(aq)/Tl⁺(aq)is 1 $\rightarrow$ Tl(s)
A)0

If the standard potential for Tl³⁺(aq) /Tl⁺(aq) is 1.21 V and the standard potential for Tl⁺(aq) /Tl(s) is -0.34 V,calculate the standard potential for Tl³⁺(aq) + 3e^- $\rightarrow$ Tl(s) .

A) 0.69 V
B) 0.87 V
C) 1.55 V
D) 0.09 V
E) 0.29 V