Question: What is the Nernst equation used for calculating the cell potential under non-standard conditions?

Options:

1. E = E° - (RT/nF)ln(Q)
2. E = E° + (RT/nF)ln(Q)
3. E = E° - (nF/RT)ln(Q)
4. E = E° + (nF/RT)ln(Q)

Correct Answer: E = E° - (RT/nF)ln(Q)

Solution:

The Nernst equation is E = E° - (RT/nF)ln(Q), where R is the gas constant, T is temperature, n is moles of electrons, and F is Faraday\'s constant.