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April 19, 2014

Homework Help: Chemistry

Posted by RZeal on Sunday, June 10, 2012 at 8:57pm.

3HClO2(aq) +2Cr3+(aq) + 4H2O(l) -> 3HClO(aq) + (Cr2O7)2(aq) + 8H+(aq)

At pH 0.00, with [Cr2O72] = 0.80 M, [HClO2] = 0.15 M, and [HClO] = 0.20 M, the cell voltage is found to be 0.15 V. Calculate the concentration of [Cr3+] in the cell

Ecell = 0.31

Not sure how to really work this one out, more complicated than other problems like this

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