the following data were obtained: [NH3], M 8.10×10-3 4.05×10-3 2.03×10-3 1.02×10-3 seconds 0 441 661 771 Hint: It is not necessary to graph these data. (1) The observed half life for this reaction when the starting concentration is 8.10×10-3 M is s and when the starting concentration is 4.05×10-3 M is s. (2) The average rate of disappearance of NH3 from t = 0 s to t = 441 s is M s-1. (3) The average rate of disappearance of NH3 from t = 441 s to t = 661 s is M s-1. (4) Based on these data, the rate constant for this order reaction is M s-1.
the following data were obtained: [NH3], M 8.10×10-3 4.05×10-3 2.03×10-3 1.02×10-3 seconds 0 441 661 771 Hint: It is not necessary to graph these data. (1) The observed half life for this reaction when the starting concentration is 8.10×10-3 M is s and when the starting concentration is 4.05×10-3 M is s. (2) The average rate of disappearance of NH3 from t = 0 s to t = 441 s is M s-1. (3) The average rate of disappearance of NH3 from t = 441 s to t = 661 s is M s-1. (4) Based on these data, the rate constant for this order reaction is M s-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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Question
In a study of the decomposition of ammonia on a tungsten surface at 1100 °C
NH31/2 N2 + 3/2 H2
the following data were obtained:
| [NH3], M | 8.10×10-3 | 4.05×10-3 | 2.03×10-3 | 1.02×10-3 |
| seconds | 0 | 441 | 661 | 771 |
Hint: It is not necessary to graph these data.
(1)
The observed half life for this reaction when the starting concentration is 8.10×10-3 M is s and when the starting concentration is 4.05×10-3 M is s.
(2)
The average rate of disappearance of NH3 from t = 0 s to t = 441 s is M s-1.
(3)
The average rate of disappearance of NH3 from t = 441 s to t = 661 s is M s-1.
(4)
Based on these data, the rate constant for this
order reaction is M s-1.
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