To learn how to use the Nernst equation The standard
Last updated: 5/2/2023
To learn how to use the Nernst equation The standard reduction potentials listed in any reference table are only valid at the common reference temperature of 25 C and standard conditions of 1 M for solutions and 1 atm for gases To calculate the cell potential at nonstandard conditions one uses the Nernst equation 2 303 RT nF E E Q where E is the potential in volts E is the standard potential at 25 C in volts R 8 314 J K mol is the gas constant T is the temperature in kelvins n is the number of moles of electrons transferred F 96 500 C male is the Faraday constant and Q is the reaction quotient log10 At the common reference temperture of 298 K substituting each constant into the equation the result is E E 0 0592 V n log10 Q Submit Completed Part D Part E Previous Answers What is the cell potential for the reaction Mg s Fe aq Mg2 aq Fe s at 55 C when Fe 2 90 M and Mg2 0 310 M Express your answer to three significant figures and include the appropriate units View Available Hint s HA