Which of the following statements is correct for the titration of Fe2+ ion with standard Ce4+ ion? I- The indicator electrode potential is calculated using the Fe3+ half-reaction after calculating the equilibrium concentrations of Fe3+ and Fe2+ in the solution before the Ce4+ solution is added. II- Before the equivalence point, the indicator electrode potential is calculated using the Fe3+ half-reaction since [Fe3+] and [Fe2+] are known. III- At the equivalence point, the indicator electrode potential is the average of the E0 values of Fe3+ and Fe2+. IV- After the equivalence point, the indicator electrode potential is calculated using the Ce4+ half-reaction since [Ce3+] and [Ce4+] are known.
Which of the following statements is correct for the titration of Fe2+ ion with standard Ce4+ ion? I- The indicator electrode potential is calculated using the Fe3+ half-reaction after calculating the equilibrium concentrations of Fe3+ and Fe2+ in the solution before the Ce4+ solution is added. II- Before the equivalence point, the indicator electrode potential is calculated using the Fe3+ half-reaction since [Fe3+] and [Fe2+] are known. III- At the equivalence point, the indicator electrode potential is the average of the E0 values of Fe3+ and Fe2+. IV- After the equivalence point, the indicator electrode potential is calculated using the Ce4+ half-reaction since [Ce3+] and [Ce4+] are known.
Chemistry: The Molecular Science
5th Edition
ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
Publisher:John W. Moore, Conrad L. Stanitski
Chapter17: Electrochemistry And Its Applications
Section: Chapter Questions
Problem 101QRT
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Which of the following statements is correct for the titration of Fe2+ ion with standard Ce4+ ion?
I- The indicator electrode potential is calculated using the Fe3+ half-reaction after calculating the equilibrium concentrations of Fe3+ and Fe2+ in the solution before the Ce4+ solution is added.
II- Before the equivalence point, the indicator electrode potential is calculated using the Fe3+ half-reaction since [Fe3+] and [Fe2+] are known.
III- At the equivalence point, the indicator electrode potential is the average of the E0 values of Fe3+ and Fe2+.
IV- After the equivalence point, the indicator electrode potential is calculated using the Ce4+ half-reaction since [Ce3+] and [Ce4+] are known.
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