- #1

- 120

- 0

## Homework Statement

From the standard potential [tex]Tl^+ + e^-[/tex] -----> [tex]Tl[/tex] (solid) [tex]E^o[/tex][tex]= -0.336 V[/tex]

Determine the standard potential of

[tex]Tl_2S[/tex] (solid) + [tex]2e^-[/tex] -----> [tex]2Tl[/tex] (solid) + [tex]S^2^-[/tex]

Given that the [tex]K_sp[/tex] for [tex]Tl_2S[/tex] is [tex]1.2x10^-22[/tex]

***I cannot get latex to put the -22 in the exponent. The Ksp is 1.2 * 10 ^-22

## Homework Equations

Nernst Equation

[tex]E = E^o -(0.05916/n) log(concentration) [/tex]

## The Attempt at a Solution

[tex]E = -0.336 -(0.05916/2) log (1.2x10^-22)[/tex]

[tex]E = +0.312 [/tex]

Im wondering if the [tex]log (1.2x10^-22) [/tex] should be [tex]log (1/1.2x10^-22) [/tex]

because the concentration is the products over the reactants. Can someone point me in the right direction? Thanks

Last edited: