Consider the following cell: |Zn (s) | Ca2* (aq) , so3²" (aq) || Hg2+ (aq) , F° (aq) | Pt (s) | a) Indicate the Oxidizing Agent b) Indicate the Reducing Agent c) Write the half reactions that occurs at the cathode d) Write the half reactions that occurs at the anode e) Write the overall net cell reaction f) Calculate the cell potential g) Indicate if electricity is produced or consumed by the cell h) Indicate if the cell is galvanic or electrolytic

Consider the following cell: |Zn (s) | Ca2* (aq) , so3²" (aq) || Hg2+ (aq) , F° (aq) | Pt (s) | a) Indicate the Oxidizing Agent b) Indicate the Reducing Agent c) Write the half reactions that occurs at the cathode d) Write the half reactions that occurs at the anode e) Write the overall net cell reaction f) Calculate the cell potential g) Indicate if electricity is produced or consumed by the cell h) Indicate if the cell is galvanic or electrolytic

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...

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A voltaic electrochemical cell is constructed using the following reaction. The half-cell components are separated by a salt bridge. Br2(1) + Mn(s) 2Br"(aq) + Mn2+(aq) Write the reactions that take place at the anode and at the cathode, the direction in which the electrons migrate in the external circuit, and the direction the anions in the salt bridge migrate. Use smallest possible integer coefficients. If a box is not needed, leave it blank. Enter the reaction that takes place at the anode. Include state symbols: Enter the reaction that takes place at the cathode. Include state symbols: In the external circuit, electrons migrate the Mn electrode the Br2 electrode. Anions migrate the salt bridge the Br2 compartment.
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A voltaic cell prepared using aluminum and nickel has the following cell notation. Al(s) | AI3+(aq) || Ni2*(aq) | Ni(s) Which of the following reactions occurs at the cathode? Al(s) Al3*(ag) + 3e- O Ni2*(aq) + 2e- Ni(s) Al3+(aq) + 3e Al(s) > Ni(s) Ni2*(aq) + 2e
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Consider the electrolysis reactions cathode anode whose standard reduction potentials can be found in this table. Calculate the voltage needed to drive the net reaction if the current is negligible. Ecell = Cu²+ (aq, 0.177 M) +2e=Cu(s) H₂O(1) ⇒ 10₂(g, 1 bar) + 2 H+ (aq, 0.195 M) + 2 e¯ The cell has a resistance of 66.0 and a current of 7.17 mA when the cathode overpotential is 0.231 V and the anode overpotential is 0.050 V. Calculate the voltage needed to overcome these effects and drive the net reaction. Ecell = V V
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