Which of the statements below are true for the titration of Fe2+ with standard Ce4+? I The indicator electrode potential before the addition of Ce4+ solution is calculated using the Fe3+ half-reaction after calculating the equilibrium concentrations of Fe3+ and Fe2+ in solution. II Before the equivalence point, the indicator electrode potential is calculated using the Fe3+ half-reaction because only [Fe3+] and [Fe2+] are known. III At the equivalence point, the indicator potential is the average of Eo for Fe3+ and Ce4+. IV After the equivalence point, the indicator electrode potential is calculated using the Ce4+ half-reaction because only [Ce4+] and [Ce2+] are known. A. I, III, and IV B. I, II, and IV C. II and IV D. II, III, and IV E. I, II, III, and IV
Which of the statements below are true for the titration of Fe2+ with standard Ce4+? I The indicator electrode potential before the addition of Ce4+ solution is calculated using the Fe3+ half-reaction after calculating the equilibrium concentrations of Fe3+ and Fe2+ in solution. II Before the equivalence point, the indicator electrode potential is calculated using the Fe3+ half-reaction because only [Fe3+] and [Fe2+] are known. III At the equivalence point, the indicator potential is the average of Eo for Fe3+ and Ce4+. IV After the equivalence point, the indicator electrode potential is calculated using the Ce4+ half-reaction because only [Ce4+] and [Ce2+] are known. A. I, III, and IV B. I, II, and IV C. II and IV D. II, III, and IV E. I, 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
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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 statements below are true for the titration of Fe2+ with standard Ce4+?
I The indicator electrode potential before the addition of Ce4+ solution is calculated using the Fe3+ half-reaction after calculating the equilibrium concentrations of Fe3+ and Fe2+ in solution.
II Before the equivalence point, the indicator electrode potential is calculated using the Fe3+ half-reaction because only [Fe3+] and [Fe2+] are known.
III At the equivalence point, the indicator potential is the average of Eo for Fe3+ and Ce4+.
IV After the equivalence point, the indicator electrode potential is calculated using the Ce4+ half-reaction because only [Ce4+] and [Ce2+] are known.
I The indicator electrode potential before the addition of Ce4+ solution is calculated using the Fe3+ half-reaction after calculating the equilibrium concentrations of Fe3+ and Fe2+ in solution.
II Before the equivalence point, the indicator electrode potential is calculated using the Fe3+ half-reaction because only [Fe3+] and [Fe2+] are known.
III At the equivalence point, the indicator potential is the average of Eo for Fe3+ and Ce4+.
IV After the equivalence point, the indicator electrode potential is calculated using the Ce4+ half-reaction because only [Ce4+] and [Ce2+] are known.
A. I, III, and IV
B. I, II, and IV
C. II and IV
D. II, III, and IV
E. I, II, III, and IV
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