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Calculate the electrode potential of Cr3+/Cr electrode at [Cr3+] = 0.001 M.Given: Cr3+ + 3e–  Cr E° = – 0.74 V

Question

Calculate the electrode potential of Cr3+/Cr electrode at [Cr3+] = 0.001 M.

Given:

Cr^{3+} + 3e^{-} \rightarrow Cr \ 
E° = -0.74 \, V
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Solution

To calculate the electrode potential of the Cr3+/Cr electrode at [Cr3+] = 0.001 M, we can use the Nernst equation:

E = E° - (0.0592/n) * log([Cr3+]/[Cr])

Given that E° = -0.74 V, [Cr3+] = 0.001 M, and we are looking for the electrode potential of Cr3+/Cr, we can substitute these values into the equation:

E = -0.74 V - (0.0592/3) * log(0.001/[Cr])

Simplifying further:

E = -0.74 V - (0.01973) * log(0.001/[Cr])

Now, you need to provide the value of [Cr] in order to calculate the electrode potential.

This problem has been solved

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