# electrode potential question

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#1
file:///C:/Users/Nagas/Desktop/electrode%20potential%20question %20.pdf

the above file is the link to my question, i need help on understanding question 1 please
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6 months ago
#2

In general all electrode potential questions go back to Michael Faraday
Try https://www.cliffsnotes.com/study-gu...rode-potential
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#3
(Original post by LuigiMario)

In general all electrode potential questions go back to Michael Faraday
Try https://www.cliffsnotes.com/study-gu...rode-potential
heres a picture of it
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#4
i am confused with question 1, can you please explain it to me so i can make notes on it
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#5
(Original post by !AXEL!)
i am confused with question 1, can you please explain it to me so i can make notes on it
this is the picture of the question
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6 months ago
#6
(Original post by !AXEL!)
this is the picture of the question
There is insufficient information. You need more data to be able to calculate the value of the electrode potentials.
0
6 months ago
#7
The calculation of electrode potential is:

dV = V1 - V2. With V1 = E°(cathode) and V2 = E°(anode), so it is dV = E°(cathode) - E°(anode)

Note: in an galvanic cell, the cathode is the reducing electrode and the anode the oxidising electrode. If you can determine the electrodes of your cell, the calculation is a piece of cake.
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6 months ago
#8
(Original post by charco)
There is insufficient information. You need more data to be able to calculate the value of the electrode potentials.
As far as I understand the text above, the potentials should be calculated with the named materials (Fe, Zn and Mg) in combination with copper respectively, or am I wrong?
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6 months ago
#9
(Original post by Kallisto)
As far as I understand the text above, the potentials should be calculated with the named materials (Fe, Zn and Mg) in combination with copper respectively, or am I wrong?
You would be correct if it did not say "for the other half-cells". What you are suggesting would be a complete cell made up of the copper half-cell combined with the other half-cells in turn.

A half-cell is just the metal in a solution of its ions (or similar).
Each of the values given is for the metal half-cell standard reduction potential.
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