The following observations have been made about a cer-tain reacting system: (i) When A, B, and C are mixed atabout equal concentrations in neutral solution, two differ-ent products are formed, D and E, with the amount of Dabout 10 times as great as the amount of E. (ii) If every-thing is done as in (i) except that a trace of acid is addedto the reaction mixture, the same products are formed,except that now the amount of D produced is muchsmaller than (about 1% of) the amount of E. The acid isnot consumed in the reaction. The following mechanismhas been proposed to account for some of these observa-tions and others about the order of the reactions:(1) A + B 2 F (rapid equilibrium)k-1ke(2) C + F → D (negligible reverse rate)ks(3) C + F E (negligible reverse rate)(a) Explain what this proposed scheme of reactionsimplies about the dependence (if any) of the rate offormation of D on the concentrations of A, of B, andof C. What about the dependence (if any) of the rateof formation of E on these same concentrations? (b) What can you say about the relative magnitudes of k,and k3?(c) What explanation can you give for observation (ii) inview of your answer to (b)?

(a) The given mechanism is, It is given that the amount of D is 10 times greater than amount of E…

Answered: The following observations have been…

World of Chemistry, 3rd edition

3rd Edition

ISBN:9781133109655

Author:Steven S. Zumdahl, Susan L. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan L. Zumdahl, Donald J. DeCoste

Chapter8: Reactions In Aqueous Solutions

Section: Chapter Questions

Problem 3STP

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