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When the Pb²+ concentration is 1.49x104 M, the observed cell potential at 298K for an electrochemical cell with the following reaction is 0.501V. What is the Cr³+ concentration? 3Pb²+ (aq) + 2Cr(s)3Pb(s) + 2Cr³+ (aq) Answer: I M

When the Pb²+ concentration is 1.49x104 M, the observed cell potential at 298K for an electrochemical cell with the following reaction is 0.501V. What is the Cr³+ concentration? 3Pb²+ (aq) + 2Cr(s)3Pb(s) + 2Cr³+ (aq) Answer: I M

Chemistry
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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When the Pb²+ concentration is 1.49x104 M, the observed cell potential at 298K for an electrochemical cell with the following reaction is 0.501V. What is the Cr³+ concentration? 3Pb²+(aq) + 2Cr(s)- →3Pb(s) + 2Cr³+(aq) Answer: I M
Transcribed Image Text:When the Pb²+ concentration is 1.49x104 M, the observed cell potential at 298K for an electrochemical cell with the following reaction is 0.501V. What is the Cr³+ concentration? 3Pb²+(aq) + 2Cr(s)- →3Pb(s) + 2Cr³+(aq) Answer: I M
When the Cu²+ concentration is 1.36 M, the observed cell potential at 298 K for an electrochemical cell with the following reaction is 1.150 V. What is the Cr³+ concentration? 3+ 3Cu²+ (aq) + 2Cr(s) → 3Cu(s) + 2Cr³+ (aq) ¯(aq) + 2e¯¯ → Cu(s) Eº = 0.337 V red → Cr(s) E red Cu²+ Cr³+ (aq) + 3e [Cr³+] =[ M = : -0.740 V
Transcribed Image Text:When the Cu²+ concentration is 1.36 M, the observed cell potential at 298 K for an electrochemical cell with the following reaction is 1.150 V. What is the Cr³+ concentration? 3+ 3Cu²+ (aq) + 2Cr(s) → 3Cu(s) + 2Cr³+ (aq) ¯(aq) + 2e¯¯ → Cu(s) Eº = 0.337 V red → Cr(s) E red Cu²+ Cr³+ (aq) + 3e [Cr³+] =[ M = : -0.740 V
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