Write down the Nernst equation of the couple Cr2O7²-/Cr³+ in acid medium.
Understand the Problem
The question is asking for the Nernst equation related to the reduction-oxidation reaction of the chromium couple Cr2O7²-/Cr³+ in an acidic environment. To address this, we need to recall the Nernst equation and apply it specifically to this redox couple, taking into account the standard reduction potentials and concentration of the species involved.
Answer
E = E° - (RT/nF) ln([Cr³+]²/[Cr₂O₇²-][H⁺]¹⁴)
The final answer is E = E° - (RT/nF) ln([Cr³+]²/[Cr₂O₇²-][H⁺]¹⁴)
Answer for screen readers
The final answer is E = E° - (RT/nF) ln([Cr³+]²/[Cr₂O₇²-][H⁺]¹⁴)
More Information
The Nernst equation helps in determining the cell potential under non-standard conditions by relating the cell potential to the reaction quotient.
Tips
Ensure the stoichiometric coefficients are correctly substituted and the logarithm term is based on product concentrations over reactant concentrations.
Sources
- Nernst Equation - Chemistry LibreTexts - chem.libretexts.org
- Solved Write Nernst equations for the following redox | Chegg.com - chegg.com
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