1.) For the reaction 2A → B,was collected over two minutes with an initial concentration of [A] = 2.50 and graphed as [A] vs. time, In[A] vs. time, and 1/[A] vs. time. The graphs are ordered left toright.[A] vs. TimeIn[A] vs. Time1/[A] vs. Time311.81.62.50.81.40.621.2y= -0.0118x + 0.91630.4R=1115S 0.2A 0.8y= 0.0102x +0.28831R = 0.96210.6204060801001201400.4 .0.5y= -0.0154x + 2.2911-0.20.2R- 0.9621-0.42040608010012014020406080100120140-0.6Time (s)Time (s)Time (s)For [A] vs. time: y = -0.0154x + 2.2911, R2 = 0.9621For In[A] vs. time: y = -0.0118x + 0.9163, R² = 1For 1/[A] vs. time: y = 0.0102x+ 0.2883, R2 = 0.9621a.) What order is the reaction? How do you know? [A]b.) Find the value of k, including units.c.) Find [A] in M at t = 155 seconds.d.) Calculate the half-life (t1/2), in seconds.

We have to find out order of reaction first then rate constant and them half life

For [A] vs. time: y = -0.0154x + 2.2911, R² = 0.9621 For In[A] vs. time: y = -0.0118x + 0.9163, R² = 1 For 1//A] vs. time: y = 0.0102x+ 0.2883, R² - 0.9621 a.) What order is the reaction? How do you know? [A] b.) Find the value of k, including units. c. Find [A) in M at t = 155 seconds.

For [A] vs. time: y = -0.0154x + 2.2911, R² = 0.9621 For In[A] vs. time: y = -0.0118x + 0.9163, R² = 1 For 1//A] vs. time: y = 0.0102x+ 0.2883, R² - 0.9621 a.) What order is the reaction? How do you know? [A] b.) Find the value of k, including units. c. Find [A) in M at t = 155 seconds.

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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Question

1.) For the reaction 2A → B,
was collected over two minutes with an initial concentration of [A] = 2.50 and graphed as [A] vs. time, In[A] vs. time, and 1/[A] vs. time. The graphs are ordered left to
right.
[A] vs. Time
In[A] vs. Time
1/[A] vs. Time
3
1
1.8
1.6
2.5
0.8
1.4
0.6
2
1.2
y= -0.0118x + 0.9163
0.4
R=1
1
15
S 0.2
A 0.8
y= 0.0102x +0.2883
1
R = 0.9621
0.6
20
40
60
80
100
120
140
0.4 .
0.5
y= -0.0154x + 2.2911
-0.2
0.2
R- 0.9621
-0.4
20
40
60
80
100
120
140
20
40
60
80
100
120
140
-0.6
Time (s)
Time (s)
Time (s)
For [A] vs. time: y = -0.0154x + 2.2911, R2 = 0.9621
For In[A] vs. time: y = -0.0118x + 0.9163, R² = 1
For 1/[A] vs. time: y = 0.0102x+ 0.2883, R2 = 0.9621
a.) What order is the reaction? How do you know? [A]
b.) Find the value of k, including units.
c.) Find [A] in M at t = 155 seconds.
d.) Calculate the half-life (t1/2), in seconds.

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