- PartA A certain firstorder reaction (A-producta) has a rate constant of 5.70x10sa 45"C. How many minutes does ittake for the concentration of the reactant JA). to drop to 628% of the original concentration? Express your answer with the appropriate units. View Available Hints) 811 min Prevtoun Ane v Correct - Part B Acerain second-order reacton (B-producta) has a rae constant of 1.00x10 ars'x27"C and an intal hatite of 213s. Waris the concentaton of the reacart Bater one hate Express your answer with the appropriate units. View Available Hints) ge feset keyboard shotouts Help Value Units Submit
- PartA A certain firstorder reaction (A-producta) has a rate constant of 5.70x10sa 45"C. How many minutes does ittake for the concentration of the reactant JA). to drop to 628% of the original concentration? Express your answer with the appropriate units. View Available Hints) 811 min Prevtoun Ane v Correct - Part B Acerain second-order reacton (B-producta) has a rae constant of 1.00x10 ars'x27"C and an intal hatite of 213s. Waris the concentaton of the reacart Bater one hate Express your answer with the appropriate units. View Available Hints) ge feset keyboard shotouts Help Value Units Submit
Chemistry: Principles and Practice
3rd Edition
ISBN:9780534420123
Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Chapter13: Chemical Kinetics
Section: Chapter Questions
Problem 13.23QE: Nitrogen monoxide reacts with chlorine to form nitrosyl chloride. NO(g)+12Cl2(g)NOCl(g) The figure...
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![Item 9
9 of 18 (>
I Review Constants | Periodic Table
The half-life of a reaction, t2, is the time it takes for the reactant concentration [A] to decrease by half. For
example, after one half-life the concentration falls from the initial concentration [A]o to [A]o/2, after a second
half-life to [Alo/4, after a third half-life to [A]o/8, and so on. on.
For a first-order reaction, the half-life is constant. It depends only on the rate constant k and nof on the reactant concentration. It is expressed as
t1/2
For a second-order reaction, the half-life depends on the rate constant and the concentration of the reactant and so is expressed as
t1/2
EA.
Part A
A certain first-order reaction (A→products) has a rate constant of 5.70x10-s at 45 °C. How many minutes does it take for the concentration of the reactant, [A], to drop to 6.25% of the original concentration?
Express your answer with the appropriate units.
• View Available Hint(s)
8.11 min
Submit
Prevlous Anawere
v Correct
Part B
A certain second-order reaction (Bproducts) has a rate constant of 1.00x10-3 M1.s'at 27 °C and an initial half-life of 218 s. What is the concentration of the reactant B after one half-life?
Express your answer with the appropriate units.
• View Available Hint(s)
Tempjetes Symbols undo redo Teset keyboard shortcuts help
Value
Units
Submit](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fa1934326-e7b1-4bbf-8a9f-e6656915b5c9%2F7129da4e-961a-4e50-893e-54642ca0e41c%2Fm2q6mqwr_processed.png&w=3840&q=75)
Transcribed Image Text:Item 9
9 of 18 (>
I Review Constants | Periodic Table
The half-life of a reaction, t2, is the time it takes for the reactant concentration [A] to decrease by half. For
example, after one half-life the concentration falls from the initial concentration [A]o to [A]o/2, after a second
half-life to [Alo/4, after a third half-life to [A]o/8, and so on. on.
For a first-order reaction, the half-life is constant. It depends only on the rate constant k and nof on the reactant concentration. It is expressed as
t1/2
For a second-order reaction, the half-life depends on the rate constant and the concentration of the reactant and so is expressed as
t1/2
EA.
Part A
A certain first-order reaction (A→products) has a rate constant of 5.70x10-s at 45 °C. How many minutes does it take for the concentration of the reactant, [A], to drop to 6.25% of the original concentration?
Express your answer with the appropriate units.
• View Available Hint(s)
8.11 min
Submit
Prevlous Anawere
v Correct
Part B
A certain second-order reaction (Bproducts) has a rate constant of 1.00x10-3 M1.s'at 27 °C and an initial half-life of 218 s. What is the concentration of the reactant B after one half-life?
Express your answer with the appropriate units.
• View Available Hint(s)
Tempjetes Symbols undo redo Teset keyboard shortcuts help
Value
Units
Submit
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