In a study of the rearrangement of ammonium cyanate to urea in aqueous solution at 50 °C NH,NCO(aq)–→{NH2)½CO(aq) the following data were obtained: NH,NCO], M 0.570 0.285 0.143 1.14 minutes 95.6 287 667 Hint: It is not necessary to graph these data. (1) The observed half life for this reaction when the starting concentration is 1.14 M is min and when the starting concentration is 0.570 M is min. (2) The average A(1/[NH,NCO]) / At from t = 0 min to t = 95.6 min is M' min!. The average A(1/[NH,NCO]) / At from t= 95.6 min to t= 287 min is M' min-1 (3) Based on these data, the rate constant for this order reaction is M' min 1.

In a study of the rearrangement of ammonium cyanate to urea in aqueous solution at 50 °C NH,NCO(aq)–→{NH2)½CO(aq) the following data were obtained: NH,NCO], M 0.570 0.285 0.143 1.14 minutes 95.6 287 667 Hint: It is not necessary to graph these data. (1) The observed half life for this reaction when the starting concentration is 1.14 M is min and when the starting concentration is 0.570 M is min. (2) The average A(1/[NH,NCO]) / At from t = 0 min to t = 95.6 min is M' min!. The average A(1/[NH,NCO]) / At from t= 95.6 min to t= 287 min is M' min-1 (3) Based on these data, the rate constant for this order reaction is M' min 1.

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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