691215to searchWXIf the decomposition of a chemical is monitored at 25°C and the initial concentrationis 3.1 x10-2 M, the final concentration at 60 minutes is 2.1 x10-2 M, what is the rateconstant of this first order reaction?111Ea) 3.2 x 10-3 min-1Cb) 6.5 x 10-3 min-1c) 1.1 x 10-3 min-1$4d) 2.3 x 10-3 min-1RL%Ri5VTG6Y4-&H718+3B N*008WM(9Kho4-11OOADI(?)alt[77°Finsert

Answered: If the decomposition of a chemical is…

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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to search
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If the decomposition of a chemical is monitored at 25°C and the initial concentration
is 3.1 x10-2 M, the final concentration at 60 minutes is 2.1 x10-2 M, what is the rate
constant of this first order reaction?
111
E
a) 3.2 x 10-3 min-1
C
b) 6.5 x 10-3 min-1
c) 1.1 x 10-3 min-1
$
4
d) 2.3 x 10-3 min-1
R
L
%
Ri
5
V
T
G
6
Y
4-
&
H
7
18+
3
B N
*
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M
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9
K
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4-11
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O
ADI
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77°F
insert

Expert Solution

Step 1

First-order reaction:

The rate of the first-order reaction depends only on one reactant. According to the first-order kinetics the rate constant of the first-order reaction is given by:

Where k = rate constant = ?

t = time = 60 min

a = initial concentration of the reactant = 3.1x10^-2 M

a-x = remaining concentration of the reactant after t time = 2.1x10^-2 M

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