1. Hydrogen peroxide decomposes in the presence of iodide ion. The reaction is: 2H,0,(aq) Using the following data, determine the rate law and the value of the rate constant. 2H,0 (1) + 0,(g) Rate ( M min -) 1.01 X 10 -3 [H,O,] 0.1 2.02 X 103 0.2 4.04 X 103 0.4 6.06 X 103 0.6

Chemistry: The Molecular Science
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Author:John W. Moore, Conrad L. Stanitski
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Chapter11: Chemical Kinetics: Rates Of Reactions
Section11.2: Effect Of Concentration On Reaction Rate
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Jessica Denver - M...
Method of Initial Rate Worksheet
1. Hydrogen peroxide decomposes in the presence of iodide ion. The reaction is:
2H,0,(aq)
Using the following data, determine the rate law and the value of the rate constant.
2H,О () + 0,(g)
Rate ( M min ')
1.01 X 10 -3
[H,O,]
0.1
2.02 X 103
0.2
4.04 X 103
0.4
6.06 X 103
0.6
2. At 325°C, NO,(g) reacts with CO(g) to yield NO(g) and CO,(g). The reaction is:
NO,(g) + CO(g) I NO(g) + CO,(g)
It is observed that the reaction rate does not depend upon the concentration of CO, and t\so tl
reaction rate law does not involve [CO]. The rate does depend upon [NO,], however, and th
following data is obtained. Determine the rate law and the value of the rate constant.
Rate ( M sec ')
1. 1 X 10 -2
NO,]
0.15
4.5 X 10-2
0.3
1.8 X 10-
4.0 X 10-13
0.6
0.9
3. Sucrose decomposes in aqueous solution into a mixture of two sugars, glucose and fructo
C1,H„0,, (aq) + H,O(1) O C,H,,0,(aq) + C,H,,O,(aq)
22
The observed initial rates of decomposition of sucrose at two different initial sucrose
concentrations at 25°C are:
Rate ( M sec ')
[Sucrose]
8.5 X 10 -3
0.1
1.71 X 102
Transcribed Image Text:ll Verizon LTE 11:34 AM 974% Jessica Denver - M... Method of Initial Rate Worksheet 1. Hydrogen peroxide decomposes in the presence of iodide ion. The reaction is: 2H,0,(aq) Using the following data, determine the rate law and the value of the rate constant. 2H,О () + 0,(g) Rate ( M min ') 1.01 X 10 -3 [H,O,] 0.1 2.02 X 103 0.2 4.04 X 103 0.4 6.06 X 103 0.6 2. At 325°C, NO,(g) reacts with CO(g) to yield NO(g) and CO,(g). The reaction is: NO,(g) + CO(g) I NO(g) + CO,(g) It is observed that the reaction rate does not depend upon the concentration of CO, and t\so tl reaction rate law does not involve [CO]. The rate does depend upon [NO,], however, and th following data is obtained. Determine the rate law and the value of the rate constant. Rate ( M sec ') 1. 1 X 10 -2 NO,] 0.15 4.5 X 10-2 0.3 1.8 X 10- 4.0 X 10-13 0.6 0.9 3. Sucrose decomposes in aqueous solution into a mixture of two sugars, glucose and fructo C1,H„0,, (aq) + H,O(1) O C,H,,0,(aq) + C,H,,O,(aq) 22 The observed initial rates of decomposition of sucrose at two different initial sucrose concentrations at 25°C are: Rate ( M sec ') [Sucrose] 8.5 X 10 -3 0.1 1.71 X 102
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