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Chemistry
10th Edition
ISBN: 9781305957404
Author: Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
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CHEMWORK
A certain substance, initially present at 0.950 M, decomposes by first-order kinetics with a rate constant of 1.25 × 102 mol L-'s"! Calculate the time (in seconds) required for the system to
reach a concentration of 0.555M.
seconds
Submit
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Hint 1 Hint 2
pt
The integrated rate law for this reaction is
1 pt
• (A] - -kt + [A]o
1 pt
O lax([A][A],) = -kt
O MA] = kt + 1/[A]o
O 1pt
O In[A] - kt + In[Alo
O pt
O MA) = -kt + 1/[Alo
O 1 pt
Check int
1st Attempt
1 pt
O 1 pt
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15
1 pt
n 16
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Transcribed Image Text:[References)
CHEMWORK
A certain substance, initially present at 0.950 M, decomposes by first-order kinetics with a rate constant of 1.25 × 102 mol L-'s"! Calculate the time (in seconds) required for the system to
reach a concentration of 0.555M.
seconds
Submit
Hide Hints
Hint 1 Hint 2
pt
The integrated rate law for this reaction is
1 pt
• (A] - -kt + [A]o
1 pt
O lax([A][A],) = -kt
O MA] = kt + 1/[A]o
O 1pt
O In[A] - kt + In[Alo
O pt
O MA) = -kt + 1/[Alo
O 1 pt
Check int
1st Attempt
1 pt
O 1 pt
Feedback
15
1 pt
n 16
1 pt
Submit Answer
Try Another Version
10 item attempts remaining
ress
Items
Previous
ish Asnigment
Save and Exit
416 PM
2/26/2021
%23
2
+ back
ER
s/DFG
xcv B
T
C
pause
t shift
alt
ctrl
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