Gibbs energy change, A;G", is related to cell potential, E, by theCalculate the standard Gibbs energy change at 25 °C for the following reaction:equationA:G = -nFEMg(s) + Fe?+(ag)→Mg²+(ag) + Fe(s)Express your answer to three significant figures and include the appropriate units.where n is the number of moles of electrons transferred andF = 96 500 C mol-1 is the Faraday's constant.• View Available Hint(s)kJmol- 1A,G" = 370.56SubmitPrevious AnswersPart BCalculate the standard cell potential at 25 °C for the reactionX(s) + 2Y*(ag)→X²+(ag) + 2Y(s)where A,H° = -729 kJ mol-1 and ArS" = -325 JK' mol1Express your answer to three significant figures and include the appropriate units.• View Available Hint(s)E =ValueUnits

For the given cell, change in enthalpy and entropy at 25oC is as follows: ∆rHo = -729 kJ mol-1∆rSo =…

Gibbs energy change, A:G®, is related to cell potential, E, by the equation Calculate the standard Gibbs energy change at 25 °C for the following reaction: A;G° = -nFE Mg(s) + Fe2+(aq)→Mg²+(aq) +Fe(s) Express your answer to three significant figures and include the appropriate units. where n is the number of moles of electrons transferred and F = 96 500 C mol- is the Faraday's constant. > View Available Hint(s) HẢ ? A,G" = 370.56 kJmol-1 Submit Previous Answers Part B Calculate the standard cell potential at 25 °C for the reaction X(s) +2Y*(aq)¬→X²*(aq) +2Y(s) where ArH° = -729 kJ mol- and A,S° = -325 JK' mo]1 Express your answer to three significant figures and include the appropriate units. > View Available Hint(s) Eo = Value Units

Gibbs energy change, A:G®, is related to cell potential, E, by the equation Calculate the standard Gibbs energy change at 25 °C for the following reaction: A;G° = -nFE Mg(s) + Fe2+(aq)→Mg²+(aq) +Fe(s) Express your answer to three significant figures and include the appropriate units. where n is the number of moles of electrons transferred and F = 96 500 C mol- is the Faraday's constant. > View Available Hint(s) HẢ ? A,G" = 370.56 kJmol-1 Submit Previous Answers Part B Calculate the standard cell potential at 25 °C for the reaction X(s) +2Y(aq)¬→X²(aq) +2Y(s) where ArH° = -729 kJ mol- and A,S° = -325 JK' mo]1 Express your answer to three significant figures and include the appropriate units. > View Available Hint(s) Eo = Value Units

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

See similar textbooks

Similar questions

A cell is described as stated below. Cu(s) | FeCl3(aq) | Cu(s) Match the entities present in solution with the appropriate descriptor and identify the reaction as spontaneous or non spontaneous. SRA- Strong reducing agent SOA - Strong oxidizing agent OA- Oxidizing agent RA - Reducing agent SP- Spontaneous reaction NSP - Non spontaneous reaction. H2O(l) Cl-(aq) Cu(s) Fe3+(aq) Cu(s) | FeCl3(aq) | Cu(s)
The net ionic cell reaction for the 'Bunsen cell ' is Zn(s) +2 NO3-(aq) + 4 H+(aq) → Zn2+(aq) + 2 H2O(I) + 2 NO2(g). Thestandard cell potential at 25 °C is -0.04 V. Calculate the electricalwork that can be done by the cell.
An aqueous sodium chloride solution is electrolyzed using a current of 4.42 A. How much time (min) is required to collect 15.5 L of chlorine if the gas is collected over water at 20.0°C ánd the total pressure is 107.5 kPa? Assume that the water is already saturated with chlorine so no more dissolves. Assume Ptotal(gas) P(Cl2,g) + P(H20,g) and that the correction for column height is negligible. The vapor pressure of water at 20.0°C is 2.34 kPa, F = 96485 C/mol e". and R = 8.314 kPa-L-mol1.K´1 Enter your final answer for the time required in units of minutes. Include only the numerical answer (no units).
Use the References to access important values if needed for this question. Consider the following half-reactions: Half-reaction E° (V) F2(g) + 2e → 2F(aq) 2.870V 2+ Pb"(aq) + 2e → Pb(s)||-0.126V - Fe2+ "(aq) + 2e¯ –→ Fe(s) |-0.440V| (1) The weakest oxidizing agent is: enter formula (2) The strongest reducing agent is: (3) The strongest oxidizing agent is: (4) The weakest reducing agent is: (5) Will Fe(s) reduce F2(g) to F(aq)? (6) Which species can be reduced by Pb(s)? If none, leave box blank.
Answer the following questions by referring to standard electrode potentials at 25°C. Will oxygen, O2, oxidize iron(II) ion in solution under standard conditions? Cathode (Reduction)Half-Reaction Standard Potential, E(V) O2(g) +4H+(aq) +4e- ----- 2H2O(l) 1.23 Fe3+(aq) +e- ---- Fe2+(aq) 0.77 yesno Will silver metal reduce 1.0 M Ni2+(aq) to metallic nickel? Cathode (Reduction)Half-Reaction Standard Potential, E(V) Ni2+(aq) +2e- ----Ni(s) –0.23 Ag+(aq) +e- ---- Ag(s) 0.80 yesno
calculate the standard reaction free energy ΔG0 for the following redox reaction. 3Zn(s) + 2NO3^-(aq) +8H^+(aq) ----> 3Zn^2+(aq) + 2NO(g) + 4H2O(l) Be sure your answer has the correct number of significant digits.
The free energy change for the following reaction at 25 °C, when Sn²+ 2+ [Zn²+] = 0.00776 M, is -133 kJ: [Sn²+] = 1.11 M and Sn²+ (1.11 M) + Zn(s) → Sn(s) + Zn²+ AG = -133 kJ What is the cell potential for the reaction as written under these conditions? Ecell V Sn(s) + Zn²+ (0.00776 M) Would this reaction be spontaneous in the forward or the reverse direction? O forward direction O reverse direction
8. Suppose that the concentrations of NaF and KCI were each 0.10 M in the cell Pb(s) PbF₂(s) F (aq)||Cl(aq)| AgCl(s) Ag(s) Using the half-reactions 2 AgCl(s) + 2e = 2Ag(s) + 2Cl and PbF2(s) +2e = Pb(s) + 2F- and, calculate the cell voltage.
Payalben
7
Q1
11. Given, Cd(s) + 2H*(aq) Cd2*(aq) + H2(g) State the effect on the cell potential, Ecell when the following changes are made: (a) The pressure of hydrogen gas is increased in the cathode compartment. (b) Sodium hydroxide is added into the electrolyte at the cathode. (c) Concentration of Cd2+ is decreased. (d) Diameters of electrodes are increased.