Chemistry
10th Edition
ISBN: 9781305957404
Author: Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
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- In the following: Al³+ (aq) + 3e → Al(s) E° = -1.66 V Cr³+ (aq) + 3e → Cr(s) E° = -0.74 V What is the standard cell potential for the corresponding galvanic cell? 0.00 V O-0.92 V +2.40 V +0.92 V O-2.40 Varrow_forwardvoltaic cell operating under standard conditions (1.0 M ion concentrations) utilizes the following reaction:3 Pb(s) + 2 Co3+(aq) 3 Pb2+(aq) + 2 Co(s)What is the effect on the cell emf of each of the following changes?(a) Water is added to the cathode compartment, diluting the solution. The positive cell emf rises, becoming more positive.The positive cell emf drops closer to zero. The negative cell emf rises closer to zero.The negative cell emf drops, becoming more negative.No change in cell emf occurs. (b) The size of the cobalt electrode is increased. The positive cell emf rises, becoming more positive.The positive cell emf drops closer to zero. The negative cell emf rises closer to zero.The negative cell emf drops, becoming more negative.No change in cell emf occurs. (c) A solution of 1.0 M Pb(NO3)2 is added to the anode compartment. The positive cell emf rises, becoming more positive.The positive cell emf drops closer to zero. The negative cell emf rises closer to…arrow_forwardA galvanic cell is powered by the following redox reaction: 2 Br,(1) + N,H,(aq) + 4 OH (aq) 4 Br (aq) + N2(g) + 4 H,O(1) Answer the following questions about this cell. If you need any electrochemical data, be sure you get it from the ALEKS Data tab. Write a balanced equation for the half-reaction that takes place at the cathode. Write a balanced equation for the half-reaction that takes place at the anode. Calculate the cell voltage under standard conditions. E = [v Round your answer to 2 decimal places.arrow_forward
- Sketch the galvanic cell based on the following overall reactions. Calculate e°; show the direction of electron flow and the direction of ion migration through the salt bridge; identify the cathode and anode; and give the overall balanced reaction. Assume that all concentrations are 1.0 M and that all partial pressures are 1.0 atm. Refer to the table above for the standard reduction potential a. Cr3+ (aq) + Cl2(g) = Cr,03 (aq) + Cl-arrow_forwardA galvanic cell is powered by the following redox reaction: + 2+ HNO₂(aq) + H+ (aq) + Cu¹ (aq) → NO(g) + H₂O(1) + Cu²+ (aq) Answer the following questions about this cell. If you need any electrochemical data, be sure you get it from the ALEKS Data tab. Write a balanced equation for the half-reaction that takes place at the cathode. Write a balanced equation for the half-reaction that takes place at the anode. Calculate the cell voltage under standard conditions. Round your answer to 2 decimal places. 0 E = V 0-0 e X 00arrow_forwardUse the standard half-cell potentials listed below to calculate the standard cell potential for the following reaction occurring in an electrochemical cell at 25°C. (The equation is balanced.) Pb( s) + Br 2( l) → Pb 2+( aq) + 2 Br⁻( aq) Pb2+(aq) + 2 e⁻ → Pb(s) E° = -0.13 V Br2(l) + 2 e- → 2 Br-(aq) E° = +1.07 Varrow_forward
- A galvanic cell is powered by the following redox reaction: 2+ 2 Zn²+(aq) + N₂H₂(aq) + 4OH¯(aq) → 2 Zn(s) + N₂(g) + 4H₂O(1) Answer the following questions about this cell. If you need any electrochemical data, be sure you get it from the ALEKS Data tab. Write a balanced equation for the half-reaction that takes place at the cathode. Write a balanced equation for the half-reaction that takes place at the anode. Calculate the cell voltage under standard conditions. Round your answer to 2 decimal places. 0 0 0 E = V 00 Sarrow_forwardA galvanic cell is powered by the following redox reaction: 3 Cl,(g) + 2 Cr(OH),(s) + 10 OH (aq) 2 Cro, (aq) + 8 H,O(1) 6 Cl (aq) + Answer the following questions about this cell. If you need any electrochemical data, be sure you get it from the ALEKS Data tab. Write a balanced equation for the half-reaction that takes place at the cathode. Write a balanced equation for the half-reaction that takes place at the anode. Calculate the cell voltage under standard conditions. E = Round your answer to 2 decimal places. Explanation Check ?? étv 6.arrow_forwardA galvanic cell is powered by the following redox reaction: 2+ MnO (aq) + 8H(aq) + 5 Cu* (aq) Mn²+ (aq) + 4H₂O(1) + 5 Cu²+ (aq) Answer the following questions about this cell. If you need any electrochemical data, be sure you get it from the ALEKS Data tab. Write a balanced equation for the half-reaction that takes place at the cathode. Write a balanced equation for the half-reaction that takes place at the anode. Calculate the cell voltage under standard conditions. Round your answer to 2 decimal places. Ov V 0-0 e Xarrow_forward
- Use the hypothetical standard half-cell potentials listed below to calculate the standard cell potential in units of V for the following reaction occurring in an electrochemical cell at 25°C. (The equation is balanced.)3 Cl 2(g) + 2 Fe(s) → 6 Cl⁻(aq) + 2 Fe 3+(aq)Cl 2(g) + 2 e⁻ → 2 Cl⁻(aq) E° = +1.73 VFe 3+(aq) + 3 e⁻ → Fe(s) E° = - 0.14 Varrow_forwardA galvanic cell is powered by the following redox reaction: 3 Br₂(1) + 2NO(g) + 4H₂O(1) - 6 Br (aq) + 2NO3(aq) + 8H (aq) Answer the following questions about this cell. If you need any electrochemical data, be sure you get it from the ALEKS Data tab. Write a balanced equation for the half-reaction that takes place at the cathode. Write a balanced equation for the half-reaction that takes place at the anode. Calculate the cell voltage under standard conditions. Round your answer to 2 decimal places. 0 0 E = v 00 Śarrow_forwardA galvanic cell is powered by the following redox reaction: Cl₂(g) + 2NO(g) + 2 H₂O(1) → 2 CI (aq) + 2 HNO₂(aq) + 2H¹ (aq) Answer the following questions about this cell. If you need any electrochemical data, be sure you get it from the ALEKS Data tab. Write a balanced equation for the half-reaction that takes place at the cathode. Write a balanced equation for the half-reaction that takes place at the anode. Calculate the cell voltage under standard conditions. Round your answer to 2 decimal places. E = v ローロ earrow_forward
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