Assume the following electrochemical cell simulates the galvanic cell formed by copper and zinc in seawater at pH 7.90 and 25 °C. Zn | Zn(OH) 2 (s) | OH ‒ (aq) || Cu(OH) 2 (s) | Cu(s) a. Write a balanced equation for the reaction that occurs at the cathode. b. Write a balanced equation for the reaction that occurs at the anode. c. Write a balanced chemical equation for the overall reaction. d. Determine the potential (in volts) of the cell.

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Chemistry & Chemical Reactivity

9th Edition
John C. Kotz + 3 others
Publisher: Cengage Learning
ISBN: 9781133949640
BuyFind

Chemistry & Chemical Reactivity

9th Edition
John C. Kotz + 3 others
Publisher: Cengage Learning
ISBN: 9781133949640

Solutions

Chapter 19.8, Problem 5Q
Textbook Problem

Assume the following electrochemical cell simulates the galvanic cell formed by copper and zinc in seawater at pH 7.90 and 25 °C.

Zn | Zn(OH)2(s) | OH(aq) || Cu(OH)2(s) | Cu(s)

  1. a. Write a balanced equation for the reaction that occurs at the cathode.
  2. b. Write a balanced equation for the reaction that occurs at the anode.
  3. c. Write a balanced chemical equation for the overall reaction.
  4. d. Determine the potential (in volts) of the cell.

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Chapter 19 Solutions

Chemistry & Chemical Reactivity
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(a) Zn(s) +...Ch. 19 - Magnesium metal is oxidized, and silver ions are...Ch. 19 - You want to set up a series of voltaic cells with...Ch. 19 - You want to set up a series of voltaic cells with...Ch. 19 - Which of the following reactions is (arc) product...Ch. 19 - In the table of standard reduction potentials,...Ch. 19 - In the table of standard reduction potentials,...Ch. 19 - Four voltaic cells are set up. In each, one...Ch. 19 - The following half-cells are available: (i)...Ch. 19 - The reaction occurring in the cell in which Al2O3...Ch. 19 - A cell is constructed using the following...Ch. 19 - A potential of 0.142 V is recorded (under standard...Ch. 19 - What is the value of E for the following...Ch. 19 - The standard potential, E, for the reaction of...Ch. 19 - An electrolysis cell for aluminum production...Ch. 19 - Electrolysis of molten NaCl is done in cells...Ch. 19 - A current of 0.0100 A is passed through a solution...Ch. 19 - A current of 0.44 A is passed through a solution...Ch. 19 - The total charge that ran he delivered by a large...Ch. 19 - Chlorine gas is obtained commercially by...Ch. 19 - Write equations for the half-reactions that occur...Ch. 19 - The products formed in the electrolysis of aqueous...Ch. 19 - Predict the products formed in the electrolysis of...Ch. 19 - In the electrolysis of HNO3(aq), hydrogen is...Ch. 19 - The metallurgy of aluminum involves electrolysis...Ch. 19 - Two half-cells, Pt | Fe3+(aq. 0.50 M), Fe2+(aq,...Ch. 19 - A voltaic cell is set up utilizing the reaction...Ch. 19 - Calculate the cell potential for the following...Ch. 19 - A voltaic cell set up utilizing the reaction Cu(s)...Ch. 19 - Two Ag+(aq) | Ag(s) half-cells are constructed....Ch. 19 - Calculate equilibrium constants for the following...Ch. 19 - Calculate equilibrium constants for the following...Ch. 19 - Use the table of standard reduction potentials...Ch. 19 - Use the table of standard reduction potentials...Ch. 19 - Write balanced equations for the following...Ch. 19 - Balance the following equations involving organic...Ch. 19 - A voltaic cell is constructed in which one...Ch. 19 - An expensive but lighter alternative to the lead...Ch. 19 - The specifications for a lead storage battery...Ch. 19 - Manganese may play an important role in chemical...Ch. 19 - You want to use electrolysis to plate a...Ch. 19 - Iron(II) ion undergoes a disproportionation...Ch. 19 - Copper(I) ion disproportionates to copper metal...Ch. 19 - The simplest way to write the reaction for...Ch. 19 - A lithium-ion camera battery is rated at 7500 mAh....Ch. 19 - Consider an electrochemical cell based on the...Ch. 19 - An old method of measuring the current flowing in...Ch. 19 - A silver coulometer (Study Question 106) was used...Ch. 19 - Four metals, A, B, C, and D, exhibit the following...Ch. 19 - A solution of KI is added dropwise to a pale blue...Ch. 19 - The amount of oxygen, O2, dissolved in a water...Ch. 19 - Fluorinated organic compounds are used as...Ch. 19 - The free energy change for a reaction, rG, is the...Ch. 19 - A hydrogen-oxygen fuel cell operates on the simple...Ch. 19 - (a) Is it easier to reduce water in acid or base?...Ch. 19 - Living organisms derive energy from the oxidation...

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