Question
Cadmium sulfide (CdS) is used in some semiconductor applications. It is possible to evision the dissolving of this slightly soluble substance as an oxidation-reduction reaction. Calculate the value of the solubility (Ksp) for CdS given the following standard reduction potentials.
CdS + 2e- --> Cd + S-2 E⁰ = -1.21 V
Cd+2 + 2e- --> Cd E⁰ = -0.402 V
CdS + 2e- --> Cd + S-2 E⁰ = -1.21 V
Cd+2 + 2e- --> Cd E⁰ = -0.402 V