The integrated rate law allows chemists to predict the reactant concentration after a certain amount of time, or the time it would take for a certain concentration to be reached. The integrated rate law for a first-order reaction is: What the rate constant of a first-order reaction that takes 307 seconds for the reactant concentration to drop to half of its initial value? Express your answer with the appropriate units. [A] = [A]ge kt > View Available Hint(s) Now say we are particularly interested in the time it would take for the concentration to become one-half of its initial value. Then we could substitute for [A and ? rearrange the equation to: Value Units 0.693 This equation calculates the time required for the reactant concentration to drop to half its initial value, In other words, it calculates the half-life. Submit
The integrated rate law allows chemists to predict the reactant concentration after a certain amount of time, or the time it would take for a certain concentration to be reached. The integrated rate law for a first-order reaction is: What the rate constant of a first-order reaction that takes 307 seconds for the reactant concentration to drop to half of its initial value? Express your answer with the appropriate units. [A] = [A]ge kt > View Available Hint(s) Now say we are particularly interested in the time it would take for the concentration to become one-half of its initial value. Then we could substitute for [A and ? rearrange the equation to: Value Units 0.693 This equation calculates the time required for the reactant concentration to drop to half its initial value, In other words, it calculates the half-life. Submit
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 11.ACP: (Section 11-5) A rule of thumb is that for a typical reaction, if concentrations are unchanged, a...
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![Part B
The integrated rate law allows chemists to predict the
reactant concentration after a certain amount of time, or
the time it would take for a certain concentration to be
reached.
What is the rate constant of a first-order reaction that takes 307 seconds for the reactant concentration to drop to half of its initial value?
The integrated rate law for a first-order reaction is:
Express your answer with the appropriate units.
[A] = [A]oe kt
• View Available Hint(s)
Now say we are particularly interested in the time it would
take for the concentration to become one-half of its initial
[A],
for [A] and
?
value. Then we could substitute
2
rearrange the equation to:
Value
Units
0.693
t1/2 =
k
This equation calculates the time required for the
reactant concentration to drop to half its initial value. In
other words, it calculates the half-life.
Submit](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F87faf35d-bdff-4fde-b9fe-6459d170f061%2F1d52465a-7fd3-41ee-beb5-afd59ad7eccc%2F1qkzmha_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Part B
The integrated rate law allows chemists to predict the
reactant concentration after a certain amount of time, or
the time it would take for a certain concentration to be
reached.
What is the rate constant of a first-order reaction that takes 307 seconds for the reactant concentration to drop to half of its initial value?
The integrated rate law for a first-order reaction is:
Express your answer with the appropriate units.
[A] = [A]oe kt
• View Available Hint(s)
Now say we are particularly interested in the time it would
take for the concentration to become one-half of its initial
[A],
for [A] and
?
value. Then we could substitute
2
rearrange the equation to:
Value
Units
0.693
t1/2 =
k
This equation calculates the time required for the
reactant concentration to drop to half its initial value. In
other words, it calculates the half-life.
Submit
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