You would like to develop a new galvanic cell and decide to use two very toxic electrode materials, mercury and cadmium. But because they are toxic, you decide to use a low concentration of each material. Cd I Cd²+ (0.20M) 1. The ◆ electrode is the anode, and the 2. Write the two half equations and the balanced overall equation: The half reaction for chromium (hint written as a reduction): The half reaction for mercury (hint written as a reduction): Overall reaction balanced equation is: Eºcell = Ecell = ◆ Has the voltage improved? is the cathode + 3. What is the Eºcell and the Ecell of this reaction? Have you improved your battery by reducing the concentration? Hint: use the Nerst equation E = E° -RT/nF x(InQ) || Hg²+ (0.10M) I Hg

You would like to develop a new galvanic cell and decide to use two very toxic electrode materials, mercury and cadmium. But because they are toxic, you decide to use a low concentration of each material. Cd I Cd²+ (0.20M) 1. The ◆ electrode is the anode, and the 2. Write the two half equations and the balanced overall equation: The half reaction for chromium (hint written as a reduction): The half reaction for mercury (hint written as a reduction): Overall reaction balanced equation is: Eºcell = Ecell = ◆ Has the voltage improved? is the cathode + 3. What is the Eºcell and the Ecell of this reaction? Have you improved your battery by reducing the concentration? Hint: use the Nerst equation E = E° -RT/nF x(InQ) || Hg²+ (0.10M) I Hg

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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4. Consider the voltaic cell: Pb(s) Cla(g) Salt bridge containing NANO;(aq) -1M Pb+ 1M C a. Determine the direction of electron flow and label the anode and the cathode. b. Write a balanced equation for the overall reaction and calculate Ee c. Label each electrode as negative or positive. d. Indicate the direction of anion and cation flow in the salt bridge.
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Consider a voltaic cell comprised of Zn/Zn2+ at one electrode and Fe2*/Fe3+ at the other electrode at standard conditions. Electrons will flow from the [ Select ] , which is the [ Select ] , and the cations in the salt bridge will flow towards the [Select ] . You may find a list of standard reduction potentials useful.
O ELECTROCHEMISTRY Designing a galvanic cell from two half-reactions A chemist designs a galvanic cell that uses these two half-reactions: standard reduction potential half-reaction 2+ Fe (aq) Ed=+0.771 V %3D 3+ red Fe"(aq)+e Cro (aq)+4 H,O(1)+3e Cr(OH),(s)+5OH (aq) -0.13 V Ered nswer the following questions about this cell. Jrite a balanced quation for the alf-reaction that appens at the athode. rite a balanced uation for the If-reaction that ppens at the ode. ite a balanced uation for the erall reaction
Number 2
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