concentrations of H(aq) and (aq) in this mixture are both 0.500 moldm There is a large excess of H.O. In this reaction mixture, the rate depends only on the concentration of I-(aq). The results are shown in the table. Time/s 0 100 200 400 600 800 1000 1200 [H]/mol dm 0.50 0.44 0.39 0.31 0.24 0.19 0.15 0.12 Plot these results on the grid in Figure 2. The first three points have been plotted. Figure 2 [H]/mol dm-3 0.5 0.4 0.3 Page 6 of 14 0.2 0.1 0.0 100 200 300 400 500 600 700 800 900 1000 1100 1200 time/s (1) Draw a line of best fit on the grid in Figure 2. (g) Calculate the rate of reaction when [H] 0.35 mol dm Show your working using a suitable construction on the graph in Figure 2.
concentrations of H(aq) and (aq) in this mixture are both 0.500 moldm There is a large excess of H.O. In this reaction mixture, the rate depends only on the concentration of I-(aq). The results are shown in the table. Time/s 0 100 200 400 600 800 1000 1200 [H]/mol dm 0.50 0.44 0.39 0.31 0.24 0.19 0.15 0.12 Plot these results on the grid in Figure 2. The first three points have been plotted. Figure 2 [H]/mol dm-3 0.5 0.4 0.3 Page 6 of 14 0.2 0.1 0.0 100 200 300 400 500 600 700 800 900 1000 1100 1200 time/s (1) Draw a line of best fit on the grid in Figure 2. (g) Calculate the rate of reaction when [H] 0.35 mol dm Show your working using a suitable construction on the graph in Figure 2.
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
Chapter12: Chemical Kinetics
Section: Chapter Questions
Problem 106CWP: A certain reaction has the form aAProducts At a particular temperature, concentration versus time...
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(e) A second reaction mixture is made at the same temperature. The initial
concentrations of H'(aq) and I (aq) in this mixture are both 0.500 mol dm
(1)
There is a large excess of H₂O₂
In this reaction mixture, the rate depends only on the concentration of I-(aq).
The results are shown in the table.
[H]/mol dm-3
Time /s
0 100 200 400 600 800 1000 1200
[H]/mol dm-³ 0.50 0.44 0.39 0.31 0.24 0.19 0.15 0.12
Plot these results on the grid in Figure 2. The first three points have been plotted.
Figure 2
0.5%
0.4
Page 6 of 14
0.3
0.2
0.1
0.0
0 100 200 300 400 500 600 700 800 900 1000 1100 1200
time/s
Draw a line of best fit on the grid in Figure 2.
Select
(g) Calculate the rate of reaction when [H] = 0.35 mol dm³
Show your working using a suitable construction on the graph in Figure 2.
Rate
(h) A general equation for a reaction is shown.
A(aq) + B(aq) + C(aq) →→D(aq) + E(aq)
Page 7 of 14
mol dm³s-¹
In aqueous solution, A, B, C and D are all colourless but E is dark blue.
A reagent (X) is available that reacts rapidly with E. This means that, if a small
amount of X is included in the initial reaction mixture, it will react with any E
produced until all of the X has been used up
Explain, giving brief experimental details, how you could use a series of experiments
to determine the order of this reaction with respect to A. In each experiment you
should obtain a measure of the initial rate of reaction.
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Library
(e) A second reaction mixture is made at the same temperature. The initial
concentrations of H'(aq) and I (aq) in this mixture are both 0.500 mol dm
(1)
There is a large excess of H₂O₂
In this reaction mixture, the rate depends only on the concentration of I-(aq).
The results are shown in the table.
[H]/mol dm-3
Time /s
0 100 200 400 600 800 1000 1200
[H]/mol dm-³ 0.50 0.44 0.39 0.31 0.24 0.19 0.15 0.12
Plot these results on the grid in Figure 2. The first three points have been plotted.
Figure 2
0.5%
0.4
Page 6 of 14
0.3
0.2
0.1
0.0
0 100 200 300 400 500 600 700 800 900 1000 1100 1200
time/s
Draw a line of best fit on the grid in Figure 2.
Select
(g) Calculate the rate of reaction when [H] = 0.35 mol dm³
Show your working using a suitable construction on the graph in Figure 2.
Rate
(h) A general equation for a reaction is shown.
A(aq) + B(aq) + C(aq) →→D(aq) + E(aq)
Page 7 of 14
mol dm³s-¹
In aqueous solution, A, B, C and D are all colourless but E is dark blue.
A reagent (X) is available that reacts rapidly with E. This means that, if a small
amount of X is included in the initial reaction mixture, it will react with any E
produced until all of the X has been used up
Explain, giving brief experimental details, how you could use a series of experiments
to determine the order of this reaction with respect to A. In each experiment you
should obtain a measure of the initial rate of reaction.
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