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When the Hg2+ concentration is 1.23 M, the observed cell potential at 298K for an electrochemical cell with the following reaction is 1.659V. What is the Cr3+ concentration? 3Hg²*(aq) + 2Cr(s)3Hg(1) + 2C1³*(aq) Answer: M

When the Hg2+ concentration is 1.23 M, the observed cell potential at 298K for an electrochemical cell with the following reaction is 1.659V. What is the Cr3+ concentration? 3Hg²*(aq) + 2Cr(s)3Hg(1) + 2C1³*(aq) Answer: M

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Chemistry
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ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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When the Hg?+ concentration is 1.23 M, the observed cell potential at 298K for an electrochemical cell with the following reaction is 1.659V. What is the Cr3+ concentration? 3Hg?*(aq) + 2Cr(s)3Hg(1) + 2C1³*(aq) Answer: M
Transcribed Image Text:When the Hg?+ concentration is 1.23 M, the observed cell potential at 298K for an electrochemical cell with the following reaction is 1.659V. What is the Cr3+ concentration? 3Hg?*(aq) + 2Cr(s)3Hg(1) + 2C1³*(aq) Answer: M
Expert Solution
Step 1

Given reaction is :

3Hg2+ (aq) + 2Cr (s) ---------> 3Hg (l) + 2Cr3+ (aq) 

Concentration of Hg2+ = [Hg2+] = 1.23 M 

Cell potential = Ecell = 1.659 V 

Concentration of Cr3+ = [Cr3+] = ?

 

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