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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
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
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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