Question
Chemistry Question on Electrochemistry
If the standard electrode potential of Cu2+/Cu electrode is 0.34 V, what is the electrode potential of 0.01 M concentration of Cu2+?(T = 298 K)
A
0.399 V
B
0.281 V
C
0.222 V
D
0176 V
Answer
0.281 V
Explanation
Solution
Cu2++2e−−>Cu At 298K E=E0−n0.0591log[Mn+]1 ECu2+/Cu−20.0591log1021 =(0.34−0.0591)V =0.2809V