The reactant concentration in a first-order reaction was 8.20x10-2 Mafter 30.0 s and 8.40x10-3 M after 100s. What is the rate constant for this reaction? Express your answer with the appropriate units. Indicate the multiplication of units, as necessary, explicitly either with a multiplication dot or a dash. ▸View Available Hint(s) for Rart C for Part Cdo for Part redo for eart C restor Part C keyboard shortcuts for Part C help for Part C M kist 3.26 10 Submit Previous Answers S X Incorrect; Try Again; 4 attempts remaining Part D The reactant concentration in a second-order reaction was 0.350 M after 185 s and 1.50x10-2 M after 785 s. What is the rate constant for this reaction? Express your answer with the appropriate units. Indicate the multiplication of units, as necessary, explicitly either with a multiplication dot or a dash.

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
Section11.7: Reaction Mechanisms
Problem 11.12E
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Question
koth 3.33x10-4 M
Submit Previous Answers
Correct
Part B
[A]o = 3.25. 10
Submit
What was the initial reactant concentration for the reaction described in Part A?
Express your answer with the appropriate units. Indicate the multiplication of units, as necessary, explicitly either with a multiplication dot or a dash.
► View Available Hint(s)
for Rart B for Part B do for Part redo for eart B resor Part B keyboard shortcuts for Part B help for Part B
Part C
X Incorrect; Try Again; 5 attempts remaining
-2
Previous Answers
2
kist= 3.26 107
Part D
Submit Previous Answers
k2nd =
M
The reactant concentration in a first-order reaction was 8.20x10-2 Mafter 30.0 s and 8.40x10-3 M after 100 s. What is the rate constant for this reaction?
Express your answer with the appropriate units. Indicate the multiplication of units, as necessary, explicitly either with a multiplication dot or a dash.
► View Available Hint(s)
Submit
S
for Rart C for Part Cdo f
do for Part redo for eart C resor Part C keyboard shortcuts for Part C help for Part C
X Incorrect; Try Again; 4 attempts remaining
Value
M
S
The reactant concentration in a second-order reaction was 0.350 Mafter 185 s and 1.50x10-2 Mafter 785 s. What is the rate constant for this reaction?
Express your answer with the appropriate units. Indicate the multiplication of units, as necessary, explicitly either with a multiplication dot or a dash.
► View Available Hint(s)
for Part D for Part Ddo fo
}
do for Parti
0
Units
3
redo for eart D resor Part D keyboard shortcuts for Part D help for Part D
Transcribed Image Text:koth 3.33x10-4 M Submit Previous Answers Correct Part B [A]o = 3.25. 10 Submit What was the initial reactant concentration for the reaction described in Part A? Express your answer with the appropriate units. Indicate the multiplication of units, as necessary, explicitly either with a multiplication dot or a dash. ► View Available Hint(s) for Rart B for Part B do for Part redo for eart B resor Part B keyboard shortcuts for Part B help for Part B Part C X Incorrect; Try Again; 5 attempts remaining -2 Previous Answers 2 kist= 3.26 107 Part D Submit Previous Answers k2nd = M The reactant concentration in a first-order reaction was 8.20x10-2 Mafter 30.0 s and 8.40x10-3 M after 100 s. What is the rate constant for this reaction? Express your answer with the appropriate units. Indicate the multiplication of units, as necessary, explicitly either with a multiplication dot or a dash. ► View Available Hint(s) Submit S for Rart C for Part Cdo f do for Part redo for eart C resor Part C keyboard shortcuts for Part C help for Part C X Incorrect; Try Again; 4 attempts remaining Value M S The reactant concentration in a second-order reaction was 0.350 Mafter 185 s and 1.50x10-2 Mafter 785 s. What is the rate constant for this reaction? Express your answer with the appropriate units. Indicate the multiplication of units, as necessary, explicitly either with a multiplication dot or a dash. ► View Available Hint(s) for Part D for Part Ddo fo } do for Parti 0 Units 3 redo for eart D resor Part D keyboard shortcuts for Part D help for Part D
The integrated rate laws for zero-, first-, and second-order reaction may be arranged such that they resemble the equation for a straight line,
y=mx+b.
Order
0
1
2
Integrated Rate Law
[A] = - kt + [A]o
| In[A] = −kt + ln[A]o
A
= kt+
1
[A]o
Graph
[A] vs. t
Slope
-k
In[A] vs. t -k
k
A
vs. t
Transcribed Image Text:The integrated rate laws for zero-, first-, and second-order reaction may be arranged such that they resemble the equation for a straight line, y=mx+b. Order 0 1 2 Integrated Rate Law [A] = - kt + [A]o | In[A] = −kt + ln[A]o A = kt+ 1 [A]o Graph [A] vs. t Slope -k In[A] vs. t -k k A vs. t
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