Use measured cell potential to calculate concentration. When [Hg2+] = 1.06 M, the observed cell potential at 298K for an electrochemical cell with the reaction shown below is 1.655 V. What is the Cr3+ concentration in this cell? 3Hg2+(aq) + 2Cr(s)—3Hg(1) + 2Cr³+(aq) [Cr3+]= M Use cell potential to calculate an equilibrium constant. Calculate the cell potential and the equilibrium constant for the following reaction at 298 K: Cu2+(aq) + Fe2(aq) → Cu*(aq) + Fe3+(aq) Hint: Carry at least 5 significant figures during intermediate calculations to avoid round off error when taking the antilogarithm. Equilibrium constant: 4.8x10^-11
Use measured cell potential to calculate concentration. When [Hg2+] = 1.06 M, the observed cell potential at 298K for an electrochemical cell with the reaction shown below is 1.655 V. What is the Cr3+ concentration in this cell? 3Hg2+(aq) + 2Cr(s)—3Hg(1) + 2Cr³+(aq) [Cr3+]= M Use cell potential to calculate an equilibrium constant. Calculate the cell potential and the equilibrium constant for the following reaction at 298 K: Cu2+(aq) + Fe2(aq) → Cu*(aq) + Fe3+(aq) Hint: Carry at least 5 significant figures during intermediate calculations to avoid round off error when taking the antilogarithm. Equilibrium constant: 4.8x10^-11
Chapter19: Applications Of Standard Electrode Potentials
Section: Chapter Questions
Problem 19.8QAP
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![Use measured cell potential to calculate concentration.
When [Hg2+] = 1.06 M, the observed cell potential at 298K for an
electrochemical cell with the reaction shown below is 1.655 V. What is the
Cr3+ concentration in this cell?
3Hg2+(aq) + 2Cr(s)—3Hg(1) + 2Cr³+(aq)
[Cr3+]=
M](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fffc14f3f-7dab-40ef-86e3-dda879a5d551%2F437c7362-d46c-4c7d-85b8-18523eaf368c%2Feifgpjs_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Use measured cell potential to calculate concentration.
When [Hg2+] = 1.06 M, the observed cell potential at 298K for an
electrochemical cell with the reaction shown below is 1.655 V. What is the
Cr3+ concentration in this cell?
3Hg2+(aq) + 2Cr(s)—3Hg(1) + 2Cr³+(aq)
[Cr3+]=
M
Transcribed Image Text:Use cell potential to calculate an equilibrium constant.
Calculate the cell potential and the equilibrium constant for the following
reaction at 298 K:
Cu2+(aq) + Fe2(aq) → Cu*(aq) + Fe3+(aq)
Hint: Carry at least 5 significant figures during intermediate calculations
to avoid round off error when taking the antilogarithm.
Equilibrium constant: 4.8x10^-11
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