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MHT CET · Chemistry · Electrochemistry

For the following cell, standard potential of copper electrode in \(0.337 \mathrm{~V}\) and standard cell potential is \(0.463 \mathrm{~V}\) \(\mathrm{Cu}\left|\mathrm{Cu}^{2+}(1 \mathrm{M}) \| \mathrm{Ag}^{+}(1 \mathrm{M})\right| \mathrm{Ag}\)
What is the standard potential of silver electrode?

  1. A \(-0.126 \mathrm{~V}\)
  2. B \(0.800 \mathrm{~V}\)
  3. C \(-0.463 \mathrm{~V}\)
  4. D \(0.126 \mathrm{~V}\)
Verified Solution

Answer & Solution

Correct Answer

(B) \(0.800 \mathrm{~V}\)

Step-by-step Solution

Detailed explanation

\(\mathrm{E}_{\mathrm{cell}}^{0}=0.463 \mathrm{~V}, \quad \mathrm{E}_{\mathrm{Cu}}^{0}=0.337 \mathrm{~V}\)
\(\mathrm{E}_{\mathrm{cell}}^{0}=\mathrm{E}_{\mathrm{Ag}}^{0}-\mathrm{E}_{\mathrm{Cu}}^{0}\)
\(\therefore \mathrm{E}_{\mathrm{Ag}}^{0}=\mathrm{E}_{\mathrm{cell}}^{0}+\mathrm{E}_{\mathrm{Cu}}^{0}=0.463+0.337=0.800 \mathrm{~V}\)