posted by Anonymous .
Cr3+(aq) + 3e¨C ￼ Cr(s); E¡ã = ¨C0.74 V
Pb2+(aq) + 2e¨C ￼ Pb(s); E¡ã = ¨C0.13 V
What is the standard cell potential for the following reaction?
2Cr(s) + 3Pb2+(aq) ¡ú 3Pb(s) + 2Cr3+(aq)
No arrows leaves me cold.
I can't translate some of the symbols.
Anyway, the answer to your problem is to add the oxidation volts to the reduction volts.