1. A flask is charged with 0.140 mol of A and allowed to react to form B according to the following hypothetical gas-phase reaction. A(g) B(g) The following data are collected. times (s) 0 40 80 120 160 moles of A 0.140 0.072 0.042 0.033 0.020 (a) Calculate the number of moles of B at each time in the table. 0 s _____mol 40 s _____mol 80 s ______mol 120 s ______mol 160 s ______mol (b) Calculate the average rate of disappearance of A for each 40 s interval, in units of mol/s. 0 - 40 s ______mol/s 40 - 80 s ______mol/s 80 - 120 s _______ mol/s 120 - 160 mol/s ______mol/s
1. A flask is charged with 0.140 mol of A and allowed to react to form B according to the following hypothetical gas-phase reaction. A(g) B(g) The following data are collected. times (s) 0 40 80 120 160 moles of A 0.140 0.072 0.042 0.033 0.020 (a) Calculate the number of moles of B at each time in the table. 0 s _____mol 40 s _____mol 80 s ______mol 120 s ______mol 160 s ______mol (b) Calculate the average rate of disappearance of A for each 40 s interval, in units of mol/s. 0 - 40 s ______mol/s 40 - 80 s ______mol/s 80 - 120 s _______ mol/s 120 - 160 mol/s ______mol/s
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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21. A flask is charged with 0.140 mol of A and allowed to react to form B according to the following hypothetical gas-phase reaction.
A(g) B(g)
The following data are collected.
| times (s) | 0 | 40 | 80 | 120 | 160 |
| moles of A | 0.140 | 0.072 | 0.042 | 0.033 | 0.020 |
(a) Calculate the number of moles of B at each time in the table.
0 s
_____mol
40 s
_____mol
80 s
______mol
120 s
______mol
160 s
______mol
(b) Calculate the average rate of disappearance of A for each 40 s interval, in units of mol/s.
0 - 40 s
______mol/s
40 - 80 s
______mol/s
80 - 120 s
_______ mol/s
120 - 160 mol/s
______mol/s
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