2.2 PLEASE 2.1The balanced equation for a voltaic cell is as follows:2Crz03 (aq) + 28H30*(aq) + 3Zr(s) → 4Cr3+(aq) + 3Zr** (aq) + 42H20 (8)In one half-cell (containing a graphite electrode) the following conditions apply:[Cr203-] = 0.200 M; [Cr³+] = 0.100 M; pH = 2.000This is combined with a standard Zr** I Zr half-cell.Under these conditions, the cell potential was measured to be 2. 597 V at 25ºC.By calculating the value of the reaction quotient and Eell under these conditions, determinethe value of the standard potential for the Zr++ | Zr half-cell.2.2 The electrolysis of GaBr3 at high temperature produces gallium metal. If a constant electricalcurrent of 20.00 x 103mA flows for exactly three hours, calculate the number of galliumatoms present in the metal produced during this time.

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The electrolysis of GaBr3 at high temperature produces gallium metal. If a constant electrical current of 20.00 x 10°mA flows for exactly three hours, calculate the number of gallium atoms present in the metal produced during this time.

The electrolysis of GaBr3 at high temperature produces gallium metal. If a constant electrical current of 20.00 x 10°mA flows for exactly three hours, calculate the number of gallium atoms present in the metal produced during this time.

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 135CWP: Consider a galvanic cell based on the following half-reactions: a. What is the expected cell...

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Question

2.2 PLEASE

2.1
The balanced equation for a voltaic cell is as follows:
2Crz03 (aq) + 28H30*(aq) + 3Zr(s) → 4Cr3+(aq) + 3Zr** (aq) + 42H20 (8)
In one half-cell (containing a graphite electrode) the following conditions apply:
[Cr203-] = 0.200 M; [Cr³+] = 0.100 M; pH = 2.000
This is combined with a standard Zr** I Zr half-cell.
Under these conditions, the cell potential was measured to be 2. 597 V at 25ºC.
By calculating the value of the reaction quotient and Eell under these conditions, determine
the value of the standard potential for the Zr++ | Zr half-cell.
2.2 The electrolysis of GaBr3 at high temperature produces gallium metal. If a constant electrical
current of 20.00 x 103mA flows for exactly three hours, calculate the number of gallium
atoms present in the metal produced during this time.

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