The initial rates for the following two elimination reactions were measured under different concentrations of the electrophiles and bases (H2O in the top reaction, KOCH½CH3 in the bottom reaction; all data is presented in the two tables. For each reaction, top and bottom, does the data suggest an El or E2 reaction pathway (rates are all 10* units)? Explain. Write the rate equations for each reaction. Trial Number [R-OCH3] [H,0] Rate (M/s) 1 0.010 M 0.45 M 9.50 x 10-1 H20 2 0.020 M 0.45 M 1.85 x 10 3 CH,CN, осн, 3 0.020 M 0.22 M 1.85 x 10-3 Trial Number [R-Br) [KOCH,CH3] Rate (M/s) 1.0 M 1.0 M 2.35 x 10 6 Br 0.50 M 0.50 M 5.9 x 10 + KOCH;CH, CH,CH,OH 3 0.50 M 1.0 M 1.20 x 10-6 Top Reaction: Bottom Reaction:

The initial rates for the following two elimination reactions were measured under different concentrations of the electrophiles and bases (H2O in the top reaction, KOCH½CH3 in the bottom reaction; all data is presented in the two tables. For each reaction, top and bottom, does the data suggest an El or E2 reaction pathway (rates are all 10* units)? Explain. Write the rate equations for each reaction. Trial Number [R-OCH3] [H,0] Rate (M/s) 1 0.010 M 0.45 M 9.50 x 10-1 H20 2 0.020 M 0.45 M 1.85 x 10 3 CH,CN, осн, 3 0.020 M 0.22 M 1.85 x 10-3 Trial Number [R-Br) [KOCH,CH3] Rate (M/s) 1.0 M 1.0 M 2.35 x 10 6 Br 0.50 M 0.50 M 5.9 x 10 + KOCH;CH, CH,CH,OH 3 0.50 M 1.0 M 1.20 x 10-6 Top Reaction: Bottom Reaction:

Chemistry

10th Edition

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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The initial rates for the following elimination reaction were measured under different concentrations of the substrate and base; the data are tabulated at the right. Do the data suggest an E1 reaction or an E2 reaction? Trial Number [R-Br] [KOCH,CH3] Rate (M/s) Br 1 1.0 M 1.0 M 2.35 × 10-6 KOCH,CH3 2 0.50 M 0.50 M 5.9 × 10-7 + CH;CH2OH 3 0.50 M 1.0 M 1.20 × 10-6