O Grades for Andrea Brisby: i - University of Oklahoma x + E O saplinglearning.c
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O Grades for Andrea Brisby: i - University of Oklahoma x + E O saplinglearning.com/ibiscms/mod/ibis/view.php?id=3871620 - a X | *| = 0 ... * Sapling Learning macmillan learring Jump to.. · @ Andrea Brisby • Question 19 of 28 14 1 100 A Sapling Learning Maputo 1500 16 150 The rate constant for the reaction is 0.260 M'.stat 200 °C. Available from:11/17/2017 06:00 PM Due Date: 12/1/2017 11:55 PM Points Possible: 5 Grade Category: Homework Description: Policies: 5 attempt, 0% penalty. Solutions After Due Date A > products If the initial concentration of A is 0.00240 M, what will be the concentration after 445 s? 1700 1800 1900 2000 Number OM You can check your answers. You can view solutions after the due date. You have five attempts per question. There is no penalty for incorrect answers, 2100 22 3 33 O eTextbook 2300 O Help With This Topic 24 1 33 o Web Help & Videos 2500 2600 O Technical Support and Bug Reports 27 3100 ·9 Hint O Previcus Q Check Answer O Next Ext 28 1 100 © 2011-2017 Sapling Learning, Inc about us careers privacy policy | terms of use contact us help E O Type here to search C a D q* 11/28/2017 7:14 PMExplanation / Answer
Since the units of rate constant is given as M-1s-1 , so it will be of second order.
Given, k = 0.260 M-1s-1 , [A]0 = 0.00240 M , t = 445 s
We have the relation as--
1/[A]t = kt + 1 /[A]0
=> 1/[A]t = 0.260 M-1s-1 * 445 s + 1/0.00240M
=> 1 /[A]t = 115.7 + 1 / 0.00240 M
=> 1 /[A]t = 1.27768 / 0.00240 M
=> 1 /[A]t = 532.37 M
=> [A]t = 1 /532.37 M
=> [A]t = 0.00187 M
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