) Use standard Gibbs energies of formation to calculate the standard reaction Gibbs energies at 298...
The standard Gibbs energies of formation for Cu2+ (aq) and Fe3+ (aq) are 65.49 kJ mol-1 and -4.7 kJ mol-1 respectively. What is the standard potential (Volts) at 298 K for the cell: 3Cu2+(aq) + 2Fe(s) + 2Fe3+ (aq) + 3Cu(s)
the Use standard reduction potentials to calculate the standard free energy change in kJ for the reaction: Cu2+(aq) + Zn(s) Cu(s) + Zn2+(aq) Answer: KJ K for this reaction would be than one Submit Answer Retry Entire Group 4 more group attempts remaining
8. The standard cell potential (E°cell) for the reaction below is +1.10 V. Calculate the cell potential for this reaction when the concentration of [Cu2+] = 1.0 × 10-5 M and [Zn2+] = 3.5 M. Zn (s) + Cu2+ (aq) → Cu (s) + Zn2+ (aq)
Consider the following reaction at 298 K: 3Cu2+(aq) + 2Al(s) + 3Cu(s) + 2 A13+ (aq) and the standard reduction potential values: Cu2+(aq) + 2e + Cu(3) E° = +0.342 v Al3+ (aq) + 3e + Al(s) E° = -1.662 v No files uploaded (Submit 6.1 and 6.2 as a single file) Q6.1 8 Points Calculate the standard Gibbs energy of reaction (A,G), in kJ/mol. Q6.2 8 Points Calculate the emf (E) when [Cu2+] = 1.0 x 10-2 M and...
Constants The following values may be useful when solving this tutorial. Constant Value E∘Cu 0.337 V E∘Zn -0.763 V R 8.314 J⋅mol−1⋅K−1 F 96,485 C/mol T 298 K Part A Part complete In the activity, click on the E∘cell and Keq quantities to observe how they are related. Use this relation to calculate Keq for the following redox reaction that occurs in an electrochemical cell having two electrodes: a cathode and an anode. The two half-reactions that occur in the...
+ Calculate the change in the standard free energy for the following reaction: Zn + Cu?+ Zn²+ (aq) + Cu (3) Standard Reduction Potentials (5) (aq) + 2e → = -0.763 V (aq) + 2e → Cu (s) Ered = 0.337 V (aq) → → Zn (5) Ered Zn2+ Cu2+ A. - 212 kJ/mol B. 175 kJ/mol C. 81.0 kJ /mol OD. - 106 kJ / mol
2. Calculate the standard cell potential for each of the following redox reactions, and then predict whether each will occur spontaneously as written. a. Sr(s) + Fe2+(aq) → Sr2+ (aq) + Fe(s) b. 2Cr(s) + 3Cd2+ (aq) → 2Cr3+ (aq) + 3Cd(s) 3. Calculate the standard cell potential, Eºcell, for each of the voltaic cells in Part II of the experiment. a. Zn(s) | Zn2+ (aq, 1.0 M) || Cu2+ (aq, 1.0 M) Cu(s) b. Zn(s) | Zn2+(aq, 1.0 M)...
Calculate the Ecell value at 298 K for the cell based on the reaction: Cu(s) + 2Ag+ (aq) → Cu2+ (aq) + 2Ag(s) where [Ag+] = 0.00350 M and [Cu2+] = 7.00x10-4 M. The standard reduction potentials are shown below: Ag+(aq) +e → Ag(s) E° = 0.7996 V Cu2+ (aq) + 2e -→ Cu(s) E° = 0.3419 V 2nd attempt Ecell = V
Calculate for the reaction: Zn! Zn2+ (0.60M)| |Cu2+ (0.20M)|Cu Given the following: Cu2+(aq) + Zn(s) Cu(s) + Zn2+(aq) Eo-1.10V
What is the ΔrG for the following reaction (in kJ mol-1) at 298 K? 2 NO2 (g) ⇌N2O4 (g) The conditions for this reaction are: PNO2 = 0.12 bar PN2O4 = 0.99 bar You will also need to use Appendix II in your textbook (containing standard Gibbs energies of formation).