The standard EMF for the cell using the overall cell reaction below is +0.84 V:2Al(s) + 312 (s)2A1³+ (aq) + 61 (aq)What is AGO for the cell reaction in kJ?Express your answer in decimal notation to one decimal place, without units.

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The standard EMF for the cell using the overall cell reaction below is +0.84 V: 2Al(s) + 312 (s)- 2A13+ (aq) + 61 (aq) What is AGO for the cell reaction in kJ? Express your answer in decimal notation to one decimal place, without units.

The standard EMF for the cell using the overall cell reaction below is +0.84 V: 2Al(s) + 312 (s)- 2A13+ (aq) + 61 (aq) What is AGO for the cell reaction in kJ? Express your answer in decimal notation to one decimal place, without units.

Chemistry: An Atoms First Approach

2nd Edition

ISBN:9781305079243

Author:Steven S. Zumdahl, Susan A. Zumdahl

Publisher:Steven S. Zumdahl, Susan A. Zumdahl

Chapter17: Electrochemistry

Section: Chapter Questions

Problem 118AE

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Electrolysis

Electrolysis is defined as the process of breaking down ionic compounds into their constituent elements by passing a direct electric current through the compound in a fluid state. The cathode reduces cations, while the anode oxidizes anions. An electrolyte, electrodes, and some form of external power source are the main components required for conducting electrolysis. A partition, such as an ion-exchange membrane or a salt bridge, may also be used, but this is optional. These are primarily used to prevent the products from diffusing near the opposing electrode.

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The standard EMF for the cell using the overall cell reaction below is +0.84 V:
2Al(s) + 312 (s)
2A1³+ (aq) + 61 (aq)
What is AGO for the cell reaction in kJ?
Express your answer in decimal notation to one decimal place, without units.

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An electrolytic cell is set up with Cd(s) in Cd(NO3)2(aq) and Zn(s) in Zn(NO3)2(aq). Initially both electrodesweigh 5.00 g. After running the cell for several hours theelectrode in the left compartment weighs 4.75 g. (a) Which electrode is in the left compartment? (b) Does the mass of the electrode in the right compartmentincrease, decrease, or stay the same? If the masschanges, what is the new mass? (c) Does the volume of the electrode in the right compartment increase, decrease, or stay the same? If the volumechanges, what is the new volume? (The density of Cd is8.65 g/cm3.)
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