Question

KAssignment 18 (Chapter 18) Introduction to the Nernst Equation 1 of 3 Review I Constants Periodic Table Learning Goal: To learn how to use the Nemst equation. Consider the reaction The standard reduction potentials listed in any reference table are only valid at standard-state conditions of 25 C and 1 M, To calculate the cell potential at non-standard-state conditions, one uses the Nemst equation, Mg(s) Fe2 (aq)Mg2 (aq)Fe(s) at 43C, where Fe213.70 M and Mg2 0.310 M 2.303 RT 10g10 Q E EC Part A where E is the potential in volts, E is the standard potential 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/(mol e is the Faraday constant, and Q is the reaction quotient What is the value for the reaction quotient, Q, for the cell? Express your answer numerically View Available Hint(s) Substituting each constant into the equation the result is Hνα ΑΣφ 0.0592V 10810Q E E Q = Submit Part B What is the value for the temperature, T, in kelvins? Express your answer to three significant figures and include the appropriate units. View Available Hint(s) HA T =Value Units Submit Part C What is the value for a? Express your answer as an integer and include the appropriate units (i.e. enter mol for moles) View Available Hint(s) HA Value Units

Answer 1

(4) Reachon + 2t + fIS O 3 -o.o837 3.7 22 3-15t 3 = 316.15K T43' 316 K () n elechon hans fered E=-2.3 2-f Anude VOp E 0.4YT VOIH Fe Camud Eamade - E Cathede 441-1-2.33) 1.9 29 Volt - -133 Vol 11