March 1, 2017

Homework Help: Gen Chem

Posted by Sarah H on Friday, March 28, 2008 at 5:39pm.

A current is passed through two cells connected in series. The half-reactions occurring at the cathode of each cell are

TcO4-(aq) + 8 H+(aq) + 7 e- ===> Tc(s) + 4 H2O(l) and
Cu2+(aq) + 2 e- ===> Cu(s).

If 4.40 g of copper are deposited in the second cell, how much technetium, Tc, is formed in the first cell?

I am not sure what equations or where to begin to solve this.

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