Which of the following statements are correct for the titration of Fe2+ ion with standard Ce4+ ion? I- 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. A.II and IV B. I, II, III and IV C. I, III and IV D. II, III and IV
Which of the following statements are correct for the titration of Fe2+ ion with standard Ce4+ ion? I- 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. A.II and IV B. I, II, III and IV C. I, III and IV D. II, III and IV
Chemistry
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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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Which of the following statements are correct for the titration of Fe2+ ion with standard Ce4+ ion?
I- 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.
A.II and IV
B. I, II, III and IV
C. I, III and IV
D. II, III and IV
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