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MISSED THIS? Read Section 15.4 (Pages 642-649); Watch KCV 15.4, IWE 15.4. The following reaction was monitored as a function of time: AB →→ A + B A plot of 1/[AB] versus time yields a straight line with slope 5.2x10-2 (M.s)-¹. ▼ Part C What is the half-life when the initial concentration is 0.56 M ? Express your answer using two significant figures. 15. ΑΣΦ t1/2 = Submit X Incorrect; Try Again; 12 attempts remaining Part D Previous Answers Request Answer [A], [B] = ? If the initial concentration of AB is 0.220 M, and the reaction mixture initially contains no pr concentrations of A and B after 70 s? Express your answers numerically using two significant figures, separated by a comm ΨΕΙ ΑΣΦ S ? M

MISSED THIS? Read Section 15.4 (Pages 642-649); Watch KCV 15.4, IWE 15.4. The following reaction was monitored as a function of time: AB →→ A + B A plot of 1/[AB] versus time yields a straight line with slope 5.2x10-2 (M.s)-¹. ▼ Part C What is the half-life when the initial concentration is 0.56 M ? Express your answer using two significant figures. 15. ΑΣΦ t1/2 = Submit X Incorrect; Try Again; 12 attempts remaining Part D Previous Answers Request Answer [A], [B] = ? If the initial concentration of AB is 0.220 M, and the reaction mixture initially contains no pr concentrations of A and B after 70 s? Express your answers numerically using two significant figures, separated by a comm ΨΕΙ ΑΣΦ S ? M

Chemistry
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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Hello, I could you please explain how to figure out C and D?

 

MISSED THIS? Read Section 15.4 (Pages 642 - 649) ; Watch KCV 15.4, IWE 15.4. The following reaction was monitored as a function of time: AB → A + B A plot of 1/[AB] versus time yields a straight line with slope 5.2x10-2 (M · s)−¹ . Part C What is the half-life when the initial concentration is 0.56 M ? Express your answer using two significant figures. ΠΙ ΑΣΦ t1/2 = Submit X Incorrect; Try Again; 12 attempts remaining Part D Previous Answers Request Answer [A], [B] = ? If the initial concentration of AB is 0.220 M, and the reaction mixture initially contains no pro concentrations of A and B after 70 s? Express your answers numerically using two significant figures, separated by a comm ΠΙ ΑΣΦ S ? M
Transcribed Image Text:MISSED THIS? Read Section 15.4 (Pages 642 - 649) ; Watch KCV 15.4, IWE 15.4. The following reaction was monitored as a function of time: AB → A + B A plot of 1/[AB] versus time yields a straight line with slope 5.2x10-2 (M · s)−¹ . Part C What is the half-life when the initial concentration is 0.56 M ? Express your answer using two significant figures. ΠΙ ΑΣΦ t1/2 = Submit X Incorrect; Try Again; 12 attempts remaining Part D Previous Answers Request Answer [A], [B] = ? If the initial concentration of AB is 0.220 M, and the reaction mixture initially contains no pro concentrations of A and B after 70 s? Express your answers numerically using two significant figures, separated by a comm ΠΙ ΑΣΦ S ? M
Expert Solution
Step 1

Since the plot of 1/[AB] versus time(s) graph is a straight line, this is a second(2nd) order reaction. 

The integrated rate law for 2nd order reaction is:

1[AB] = k*t + 1[AB]o

where [AB] = concentration of reactant, AB at any time "t" sec. 

[AB]o = initial concentration of AB. 

Comparing the above equation with the equation of straight line, y = m*x + b, 

slope, m = k

=> 5.2*10-2 M-1.s-1 = k 

Hence the rate constant of the reaction, k = 5.2*10-2 M-1.s-1 

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