9. When phenacyl bromide and pyridine are both dissolved in methanol, they react to form phenacylpyridinium bromide. C6H5-C-CH2Br + C5H5N → C6H5-C-CH2NC3H + Br When equal concentrations of reactants were mixed in methanol at 35°C, these data were obtained: Time (min) Reactant] Imol/L) Time Imin) Reactant (atol/L) 0. 0.0385 500 0.0208 100 0.0330 600 0.0191 200 0.0288 700 0.0176 300 0.0255 800 0.0163 400 0.0220 1000 0.0143 a) What is the rate law for this reaction? b) What is the overall order?

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Chapter12: Chemical Kinetics
Section: Chapter Questions
Problem 100AE: Consider a hypothetical reaction between A and B: A + B products Use the following initial rate...
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7. A study of the hypothetical reaction 2A + B - C+D gave these results:
Initial Concentration (mol/L)
Initial Rate
Experiment
[B]
(mol Ls )
1.
0.10
0.050
6.0 x 103
2
0.20
0.050
1.2 x 10-2
3
0.30
0.050
1.8 x 10 2
4
0.20
0.150
1.1 x 10-1
a) What is the rate law for this reaction?
b) Calculate the rate constant k and express it in appropriate units.
Transcribed Image Text:7. A study of the hypothetical reaction 2A + B - C+D gave these results: Initial Concentration (mol/L) Initial Rate Experiment [B] (mol Ls ) 1. 0.10 0.050 6.0 x 103 2 0.20 0.050 1.2 x 10-2 3 0.30 0.050 1.8 x 10 2 4 0.20 0.150 1.1 x 10-1 a) What is the rate law for this reaction? b) Calculate the rate constant k and express it in appropriate units.
c) Rate = k[NO]*[H,J?
9. When phenacyl bromide and pyridine are both dissolved in methanol, they react to form phenacylpyridinium bromide.
C6H5-C-CH,Br + C3H;N
C,H5-C-CH,NC;H + Br
When equal concentrations of reactants were mixed in methanol at 35°C, these data were obtained:
Time
(min)
(Reactant)
(mol/)
time
(minh
IReactant)
(amol/L)
0.0385
500
0.0208
100
0.0330
600
0.0191
200
0.0288
700
0.0176
300
0.0255
800
0.0163
400
0.0220
1000
0.0143
a) What is the rate law for this reaction?
b) What is the overall order?
Transcribed Image Text:c) Rate = k[NO]*[H,J? 9. When phenacyl bromide and pyridine are both dissolved in methanol, they react to form phenacylpyridinium bromide. C6H5-C-CH,Br + C3H;N C,H5-C-CH,NC;H + Br When equal concentrations of reactants were mixed in methanol at 35°C, these data were obtained: Time (min) (Reactant) (mol/) time (minh IReactant) (amol/L) 0.0385 500 0.0208 100 0.0330 600 0.0191 200 0.0288 700 0.0176 300 0.0255 800 0.0163 400 0.0220 1000 0.0143 a) What is the rate law for this reaction? b) What is the overall order?
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