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(22) A concentration cell running at 25°C consists of two Pb (s)/Pb2+ cells. If the concentration of Pb²* at the anode is 6.81 x 10' M and the concentration of Pb²+ at the cathode is 1.55 M, what is the value of Ecea? (A) 0.24 V (B) -0.18 V (C) 0.18 V (D) -0.34 V (E) 0.43 V

(22) A concentration cell running at 25°C consists of two Pb (s)/Pb2+ cells. If the concentration of Pb²* at the anode is 6.81 x 10' M and the concentration of Pb²+ at the cathode is 1.55 M, what is the value of Ecea? (A) 0.24 V (B) -0.18 V (C) 0.18 V (D) -0.34 V (E) 0.43 V

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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2 2 spontaneous required AG> 0 (t)e not accur equired AGO(t)e ea energy produces) free energy stant (96,485 C/mol) Excell = N/= 15/2 .K Anneada entrat me polentral lectrolytic cell barriers where trering concen-tions on 2 staes. of barrie, cr tion solu to d cell ion Section III-Select the correct answer: Zn(s)-75²² (21) anode' ind Fluorine-18 is a radioactive isotope commonly used in medicine. It has a half-life of 110 minutes. What is the activity (in Curies) of a 18F sample that has a mass of 3.46 x 10* g? (A) 19714 (B) 329 (C) 5914 (D) 668 (E) 311 (22) A concentration cell running at 25°C consists of two Pb (s)/Pb2+ cells. If the concentration of Pb²+ at the anode is 6.81 x 107 M and the concentration of Pb²+ at the cathode is 1.55 M, what is the value of Ecell? (A) 0.24 V (B) -0.18 V (C) 0.18 V (D) -0.34 V (E) 0.43 V 7 dax Jefe 45. NIV 3W The New ор по аша алош Ло[u>< Sd aul jumo ano иел әр!м 1
Transcribed Image Text:2 2 spontaneous required AG> 0 (t)e not accur equired AGO(t)e ea energy produces) free energy stant (96,485 C/mol) Excell = N/= 15/2 .K Anneada entrat me polentral lectrolytic cell barriers where trering concen-tions on 2 staes. of barrie, cr tion solu to d cell ion Section III-Select the correct answer: Zn(s)-75²² (21) anode' ind Fluorine-18 is a radioactive isotope commonly used in medicine. It has a half-life of 110 minutes. What is the activity (in Curies) of a 18F sample that has a mass of 3.46 x 10* g? (A) 19714 (B) 329 (C) 5914 (D) 668 (E) 311 (22) A concentration cell running at 25°C consists of two Pb (s)/Pb2+ cells. If the concentration of Pb²+ at the anode is 6.81 x 107 M and the concentration of Pb²+ at the cathode is 1.55 M, what is the value of Ecell? (A) 0.24 V (B) -0.18 V (C) 0.18 V (D) -0.34 V (E) 0.43 V 7 dax Jefe 45. NIV 3W The New ор по аша алош Ло[u>< Sd aul jumo ano иел әр!м 1
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