What is the reduction half-reaction for the following overall galvanic cell reaction? Co2+(aq) + 2 Ag(s)...
Balance the following oxidation-reduction reactions using the half-reaction method. 1. HCOOH (aq) + MnO.. (aq) → CO2 (g) + Mn2. Acidie solution Identify the reduction half Identify the oxidation half Basic solution Identify the reduction half Identify the oxidation half Write a balanced equation for the electrode and overall cell reactions in the following galvanic cell and determine E°. Sketch the cell, labeling the anode and cathode and showing the direction of electron and ion flow. 2. 3. Circle the...
14. A galvanic cell is composed of these two half cells, with the standard reduction potentials shown Co" (aq) + 2e = Co(s) -0.28 volt Cro(aq) + 3 e = Cr(s) -0.74 volt What is the standard free energy for the cell reaction of this galvanic cell? a. -88.8 kJ b. -178 kJ c. -266 kJ d. -295 kJ e. -590 kJ MO die W oss som sa robi bo bolo Videos onto 15. A galvanic cell is composed of...
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An electrochemical reaction occurring in a galvanic cell is expressed using the standard cell notation: Zn(s) Zn2+ (aq) || Ag (aq) | Ag(s) The standard reduction potentials for the half-cell reactions are as follows: Zn2+(aq) + 2e_? Zn(s) E o=-0.76 V Ag (a)eAg(s) E +0.80 V Which of the following statements is correct regarding this electrochemical cell? A. Agt is reduced at the cathode; Zn is oxidized at the anode. B. Edell = +1.56 V...
1)What is the overall cell reaction of a galvanic cell employing the following half-reactions? NiO2(s) + 2H2O + 2e- ⇄ Ni(OH)2(s) + 2OH-(aq), E°NiO2= 0.49 V; Fe(OH)2(s) + 2e- ⇄ Fe(s) + 2OH-(aq), E°Fe(OH)2= − 0.88 V. A)NiO2(s) + 2Fe(s) + 2H2O → Ni(OH)2(s) + 2Fe(OH)2(s) B)NiO2(s) + Fe(s) + 2H2O → Ni(OH)2(aq) + Fe(OH)2(aq) C)NiO2(s) + Fe(s) + 2H2O → Ni(OH)2(s) + Fe(OH)2(s) D)Ni(OH)2(s) + Fe(OH)2(s) → NiO2(s) + Fe(s) + 2H2O 2)What is the standard cell potential of...
A chemist designs a galvanic cell that uses these two half-reactions: half-reaction standard reduction potential Cl 2 (g) + 2 e − → 2 Cl − (aq) = E 0 red + 1.359 V MnO − 4 (aq) + 2 H 2 O (l) + 3 e − → MnO 2 (s) + 4 OH − (aq) = E 0 red + 0.59 V cathode half reaction anode half reaction overall reaction cell potential at standard state
Consider the galvanic cell that uses the reaction 2 Ag^+ (aq) + Cu(s) rightarrow Cu^2+ (aq) + 2 Ag (s) Clearly sketch the experimental set-up, write down the anode and cathode half-reactions, and give the shorthand notation for the cell.
Consider a galvanic cell that uses the half reactions: Fe3+(aq) + 3e → Fe(s) Ered=-0.04V Co2+ (aq) + 2e → Co(s) Ered - -0.28 V • 1) Calculate AGº for this reaction in kJ/mol. • 2) Calculate the equilibrium constant, K, for this reaction at 298 K • 3) What is the cell potential at 25°C when [Fe3+] - 1.09 M and [Co2+] = 0.057 M?
Consider the following galvanic cell at 25°C. Pt | Cr2+ (0.33 M), Cr3+ (2.0 M) || Co2+ (0.18 M) I Co The overall reaction and equilibrium constant value are given below. 2 Cr2+(aq) + Co2+(aq) → 2 Cr3+ (aq) + Co(s) K = 2.79x107 Calculate the cell potential E for this galvanic cell and AG for the cell reaction at these conditions. E -2.5 ху AG Need Help? Read It
A chemist designs a galvanic cell that uses these two half-reactions: half-reaction cof(aq)+4H2O()+3e_ → Cr(OH)3(s)+50H-(aq)| Fe (a)teFe() standard reduction potential E d=-0.13 V E01" +0.771 V 2 + Answer the following questions about this cell. Write a balanced equation for the half-reaction that happens at the cathode. Write a balanced equation for the half-reaction that happens at the anode. Write a balanced equation for the overall reaction that powers the cell. Be sure the reaction is spontaneous as written Check...
5. The overall cell reaction in a galvanic cell is Sn(s) + Cu* (aq)>Sn (aq)+ Cu (s). (a) Draw a diagram of this cell (similar to Figure 2) (b) Use standard reduction potentials (Table 1) to calculate the theoretical cell voltage, el