In addition to above, I know that you use Cu2+/Cu as cathode, and ascorbic acid

Question

In addition to above, I know that you use Cu2+/Cu as cathode, and ascorbic acid as anode.

Therefore you have Ec-Ea=0.206 V
According to the table, redox potential of Cu2+/Cu is 0.340 V vs Standard hydrogen electrode
So you have 0.340 V - Ea=0.206 V
So Ea=0.134 V vs Standard hydrogen electrode
Standard hydrogen half cell has potential of 0 V. So the question is basically asking what is the potential of your anode, but I'm still a little lost as to what the final answer is.  Any help is appreciated

What is the potential, in volts, of the ascorbic acid half cell at pH 5 vs. the standard In addition to above, I know that you use Cu2+/Cu as cathode, and ascorbic acid as anode. Therefore you have Ec-Ea=0.206 V According to the table, redox potential of Cu2+/Cu is 0.340 V vs Standard hydrogen electrode So you have 0.340 V - Ea=0.206 V So Ea=0.134 V vs Standard hydrogen electrode Standard hydrogen half cell has potential of 0 V. So the question is basically asking what is the potential of your anode, but I'm still a little lost as to what the final answer is. Any help is appreciated

Explanation / Answer

potential at anode is +0.134 V   

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