Homework Help: Chemistry

Posted by Rachel on Tuesday, May 10, 2011 at 5:50pm.

2 Ag+(aq) + Fe(s) --> 2 Ag(s) + Fe2+(aq)

Which electrode is the anode, and which is the cathode.

and

In which directions do the cations and anions migrate through the solution?
cations

thanks

Chemistry - DrBob222, Tuesday, May 10, 2011 at 6:38pm
Write the two half equations.
Ag^+ + e ==> Ag
Fe==> Fe^+2 + 2e
Which one loses electrons. That is oxidation. Oxidation occurs at the anode.

The anode is - charge. Fe^2+ are increasing (which means more negative ions migrate to that half cell). Ag^+ is decreasing which means fewer negative ions needed in that half cell.

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