Given:
CoX3+(aq)+eX−⟶CoX2+(aq)E°=+1.82 VCoX2+(aq)+2eX−⟶Co(s)E°=−0.28 V
what is the standard reduction potential for CoX3+(aq)+3eX−⟶Co(s)?
If I add up these two half-equations to get the desired half-equation, I get E∘=+1.54 V. But the correct answer is + 0.42V!
Am I missing something?
No comments:
Post a Comment