Permanganate reacts with isopropyl alcohol in acidic medium as shown: 2MnO4- + C3H7OH + 6H+ → 2Mn2+ + C3H6O + 4H2O The kinetics of the reaction was determined by conducting runs of varying concentration of the reactants. Reaction time was measured as soon as the purple color of permanganate ion turned colorless. Kinetic data was shown below. Table 1. Kinetic data of reduction of permanganate by isopropyl alcohol at 301.15 K. Run [MnO4-], M [C3H7OH], M [H+], M Rate (x10-4 M s-1) 1 0.010 0.010 0.010 1.14 2 0.020 0.010 0.010 2.31 3 0.030 0.010 0.010 3.50 4 0.020 0.010 0.020 4.65 5 0.020 0.010 0.030 5.77 6 0.020 0.020 0.030 5.76 1.Write the rate law of the reaction. 2. What is the average rate constant of the reaction?
Permanganate reacts with isopropyl alcohol in acidic medium as shown: 2MnO4- + C3H7OH + 6H+ → 2Mn2+ + C3H6O + 4H2O The kinetics of the reaction was determined by conducting runs of varying concentration of the reactants. Reaction time was measured as soon as the purple color of permanganate ion turned colorless. Kinetic data was shown below. Table 1. Kinetic data of reduction of permanganate by isopropyl alcohol at 301.15 K. Run [MnO4-], M [C3H7OH], M [H+], M Rate (x10-4 M s-1) 1 0.010 0.010 0.010 1.14 2 0.020 0.010 0.010 2.31 3 0.030 0.010 0.010 3.50 4 0.020 0.010 0.020 4.65 5 0.020 0.010 0.030 5.77 6 0.020 0.020 0.030 5.76 1.Write the rate law of the reaction. 2. What is the average rate constant of the reaction?
Chemistry: The Molecular Science
5th Edition
ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
Publisher:John W. Moore, Conrad L. Stanitski
Chapter11: Chemical Kinetics: Rates Of Reactions
Section: Chapter Questions
Problem 113QRT
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Question
Permanganate reacts with isopropyl alcohol in acidic medium as shown:
2MnO4- + C3H7OH + 6H+ → 2Mn2+ + C3H6O + 4H2O
The kinetics of the reaction was determined by conducting runs of varying concentration of the reactants. Reaction time was measured as soon as the purple color of permanganate ion turned colorless. Kinetic data was shown below.
Table 1. Kinetic data of reduction of permanganate by isopropyl alcohol at 301.15 K.
|
Run |
[MnO4-], M |
[C3H7OH], M |
[H+], M |
Rate (x10-4 M s-1) |
|
1 |
0.010 |
0.010 |
0.010 |
1.14 |
|
2 |
0.020 |
0.010 |
0.010 |
2.31 |
|
3 |
0.030 |
0.010 |
0.010 |
3.50 |
|
4 |
0.020 |
0.010 |
0.020 |
4.65 |
|
5 |
0.020 |
0.010 |
0.030 |
5.77 |
|
6 |
0.020 |
0.020 |
0.030 |
5.76 |
1.Write the rate law of the reaction.
2. What is the average rate constant of the reaction? Express in proper units.
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