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A voltaic cell made of a Cr electrode in a solution of 1.0 M in Cr
3+
and a gold electrode in a
solution that is 1.0 M in Au
3+
.
a) Provide the half cell reactions for each of the electrodes.
b) Which is the anode and which is the cathode? How did you decide?
c) Give an overall balanced equation for the cell.
d) Calculate the E
o
cell at 25
o
C.

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asked by megan
  1. My old text probably doesn't have the same Eo values as yours. What is the Eo value for
    Cr^3+ + 3e ==> Cr(s) in your text and
    Au^3+ + 3e ==> Au(s) in your text?
    Also what are you having trouble with on this problem?

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