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When the Pb²+ concentration is 2.45×104 M, the observed cell potential at 298K for an electrochemical cell with the following reaction is 0.507V. What is the Cr³+ concentration? 3Pb²+ (aq) + 2Cr(s)—3Pb(s) + 2Cr³+ (aq) Answer: 1.62 M

When the Pb²+ concentration is 2.45×104 M, the observed cell potential at 298K for an electrochemical cell with the following reaction is 0.507V. What is the Cr³+ concentration? 3Pb²+ (aq) + 2Cr(s)—3Pb(s) + 2Cr³+ (aq) Answer: 1.62 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 2.45x10-4 M, the observed cell potential at 298K for an electrochemical cell with the following reaction is 0.507V. What is the Cr³+ concentration? 3Pb²+ (aq) + 2Cr(s)—3Pb(s) + 2Cr³+ (aq) Answer: 1.62 Use the References to access important values if needed for this question. M
Transcribed Image Text:When the Pb²+ concentration is 2.45x10-4 M, the observed cell potential at 298K for an electrochemical cell with the following reaction is 0.507V. What is the Cr³+ concentration? 3Pb²+ (aq) + 2Cr(s)—3Pb(s) + 2Cr³+ (aq) Answer: 1.62 Use the References to access important values if needed for this question. M
When the Pb²+ concentration is 1.14 M, the observed cell potential at 298 K for an electrochemical cell with the following reaction is 1.154 V. What is the Mn²+ concentration? Pb²+ (aq) + Mn(s) → Pb(s) + Mn²+ red Pb²+ (aq) + 2e¯ → Pb(s) Ee Mn²+ (aq) + 2e¯¯ → Mn(s) Fred [Mn²+] =0 M (aq) = -0.126 V -1.180 V
Transcribed Image Text:When the Pb²+ concentration is 1.14 M, the observed cell potential at 298 K for an electrochemical cell with the following reaction is 1.154 V. What is the Mn²+ concentration? Pb²+ (aq) + Mn(s) → Pb(s) + Mn²+ red Pb²+ (aq) + 2e¯ → Pb(s) Ee Mn²+ (aq) + 2e¯¯ → Mn(s) Fred [Mn²+] =0 M (aq) = -0.126 V -1.180 V
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