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April 20, 2014

Homework Help: College Chemistry

Posted by Maria on Saturday, June 23, 2012 at 2:45pm.

What are the concentrations of Pb2+ and Cu2+ when the cell potential falls to 0.370 V?

Given: A voltaic cell consists of a Pb/Pb2+ half-cell and a Cu/Cu2+ half-cell at 25degrees C . The initial concentrations of Pb2+ and Cu2+ are 5.3010−2 M and 1.60 M, respectively.

The Einitial cell that I calculated was 0.47. I know how to figure out the Q, but I don't know how to figure out the specific concentrations of Pb2+ and Cu2+ given only this information. Please help me! Thank you :)

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