chemistry advanced?

0 ⤊

The cell

Cr(s)│ Cr3+(aq)║ Cu2+(aq)│Cu(s)

has Eo = +1.08V.

If Eo for the half cell Cu2+/Cu = +0.34 V calculate Eo for the Cr3+/Cr half cell.

Give a balanced equation for the cell reaction. How many electrons are transferred in the equation you have provided?

2007-01-19 22:51:07 · 2 answers · asked by amanda p 1 in Science & Mathematics ➔ Chemistry

2 answers

EMF = E(left) - E(right)
1.08 = E(left) - 0.34
E(left) = +1.42V

2Cr(s) + 3Cu2+(aq) --> 2Cr3+(aq) + 3Cu(s)

6 electrons are transferred.

2007-01-20 04:18:58 · answer #1 · answered by Elaine 2 · 0⤊ 0⤋

You really should learn how to do your own Homework ..

how you going to trust the 'answers' you get here if you don't understand ??

2007-01-20 17:19:06 · answer #2 · answered by Steve B 7 · 0⤊ 1⤋