Chemistry

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Given these standard reduction potentials at 25 C
1. Cr3+ + e- ===> Cr2+ E1=-0.407 V
2. Cr2+ + 2e- ===> Cr(s) E2=-0.913 V

determine the standard reduction potential at 25C for the half-reaction equation
Cr3+ + 3e- ===> Cr(s)

E=?

When I tried, I got 1.08V and I honesty can't figure out what I did wrong =/

  • Chemistry -

    Never mind, it's -.744V I figured it out!

  • Chemistry -

    good.

  • Chemistry -

    If the ministers do not visit the plepoe and the media say, "Illi ishtondu galate aaguvaaga maanya mantriyavaru elli iddaru?" It becomes a issue. The opposition party joins, whole world starts shouting about the inhumanity of the govt.ministersetc.The plepoe and the enemies of the govt want some pampering than real work.Actually I agree that the the govt and police can save time and utilise it for useful acitivities.

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