+ Half-life (kinetics) for First Order Reactions10 of 18II Review | Constants | Periodic TablePart BThe integrated rate law allows chemists to predict thereactant concentration after a certain amount of time, orthe time it would take for a certain concentration to beWhat is the rate constant of a first-order reaction that takes 437 seconds for the reactant concentration to drop to half of its initial value?reached.Express your answer with the appropriate units.The integrated rate law for a first-order reaction is:• View Available Hint(s)[A] = [A]ge=ktNow say we are particularly interested in the time it wouldtake for the concentration to become one-half of its initial[A].value. Then we could substitutefor [A] andrearrange the equation to:ValueUnits0.693t/2=SubmitThis equation calculates the time required for thereactant concentration to drop to half its initial value. Inother words, it calculates the half-life.Part C

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I Review | Constants | P 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. The integrated rate law for a first-order reaction is: What is the rate constant of a first-order reaction that takes 437 seconds for the reactant concentration to drop to half of its Express your answer with the appropriate units. > View Available Hint(s) [A] = [A]oe-kt Now say we are particularly interested in the time it would take for the concentration to become one-half of its initial (A value. Then we could substitute e for JA] and rearrange the equation to: Value Units 0.693 1/2 Submit 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. Part C

I Review | Constants | P 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. The integrated rate law for a first-order reaction is: What is the rate constant of a first-order reaction that takes 437 seconds for the reactant concentration to drop to half of its Express your answer with the appropriate units. > View Available Hint(s) [A] = [A]oe-kt Now say we are particularly interested in the time it would take for the concentration to become one-half of its initial (A value. Then we could substitute e for JA] and rearrange the equation to: Value Units 0.693 1/2 Submit 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. Part C

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

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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