A reaction A → B has the following time dependence for the concentration of [A] vs time. For t=(0 s, 5 s, 10 s, 15 s, 25 s) the concentrationof [A]=(30.00 M, 17.75 M, 12.61 M, 9.77 M, 6.74 M). The initial concentration of [A] is the value at t=0 s.(A)Calculate the values of the rate constant k assuming that the reaction is first order.What is the value of k at 5 s? 0.105What is the value of k at 10 s? 0.087What is the value of k at 15 s? 0.0748What is the value of k at 25 s? 0.0597(B)Calculate the value of k assuming that the reaction is second order.M-¹5-1What is the value of k at 5 s? 0.0046What is the value of k at 10 s? 0.00459What is the value of k at 15 s? 0.004600.00460What is the value of k at 25 s?S-1$1S-1M-15-1M-15-1M-15-1(C)Use your results from parts A and B above to decide what the order of the reaction is for your data. (Enter 1 or 2) 2(D)What is the concentration of [A] at time t=64 s? 2.81XM

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(D)What is the concentration of [A] at time t=64 s? 2.81 XM

Chemistry

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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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Writing and Balancing Nuclear Equations

A nuclear equation is a symbolic representation of a nuclear reaction using certain symbols. It is studied in nuclear chemistry and nuclear physics.

Question

A reaction A → B has the following time dependence for the concentration of [A] vs time. For t=(0 s, 5 s, 10 s, 15 s, 25 s) the concentration
of [A]=(30.00 M, 17.75 M, 12.61 M, 9.77 M, 6.74 M). The initial concentration of [A] is the value at t=0 s.
(A)Calculate the values of the rate constant k assuming that the reaction is first order.
What is the value of k at 5 s? 0.105
What is the value of k at 10 s? 0.087
What is the value of k at 15 s? 0.0748
What is the value of k at 25 s? 0.0597
(B)Calculate the value of k assuming that the reaction is second order.
M-¹5-1
What is the value of k at 5 s? 0.0046
What is the value of k at 10 s? 0.00459
What is the value of k at 15 s? 0.00460
0.00460
What is the value of k at 25 s?
S-1
$1
S-1
M-15-1
M-15-1
M-15-1
(C)Use your results from parts A and B above to decide what the order of the reaction is for your data. (Enter 1 or 2) 2
(D)What is the concentration of [A] at time t=64 s? 2.81
XM

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