Question

In: Chemistry

The rate constant for the reaction is 0.130 M–1·s–1 at 200 °C. If the initial concentration...

The rate constant for the reaction is 0.130 M–1·s–1 at 200 °C. If the initial concentration of A is 0.00680M, what will be the concentration after 435s?

Solutions

Expert Solution

The units of the rate constant is M-1 s-1. Therefore it is a second order reaction

For a second order reaction:   2A products   or   A + B products   (when [A] = [B])    ,    rate = k[A]2

The integrated rate law is 1/[A] = kt + 1/[Ao]

Given, k = 0.130 M-1 s-1

  Ao= 0.00680 M

t = 435s

Therefore from the integrated rate law

1/[A] = (0.130 M-1 s-1)(435) + 1/(0.00680 M)

[A] = 0.00491 M

Therefore concentration after 435s is 0.00491M

queen_honey_blossom answered 1 year ago
Next > < Previous

Related Solutions

a.) The rate constant for the reaction is 0.460 M–1·s–1 at 200 °C. A--> products. If...
a.) The rate constant for the reaction is 0.460 M–1·s–1 at 200 °C. A--> products. If the initial concentration of A is 0.00680 M. what is the concentration after 315 s? b.)The rate constant for this zero-order reaction is 0.0190 M·s–1 at 300 °C. A--> products. How long (in seconds) would it take for the concentration of A to decrease from 0.800 M to 0.240 M? c.)The rate constant for this second-order reaction is 0.520 M–1·s–1 at 300 °C. A-->...
a.) The rate constant for the reaction is 0.460 M–1·s–1 at 200 °C. A--> products. If...
a.) The rate constant for the reaction is 0.460 M–1·s–1 at 200 °C. A--> products. If the initial concentration of A is 0.00680 M. what is the concentration after 315 s? b.)The rate constant for this zero-order reaction is 0.0190 M·s–1 at 300 °C. A--> products. How long (in seconds) would it take for the concentration of A to decrease from 0.800 M to 0.240 M? c.)The rate constant for this second-order reaction is 0.520 M–1·s–1 at 300 °C. A-->...
A second-order reaction has a rate constant of 0.009500/(M · s) at 30°C. At 40°C, the...
A second-order reaction has a rate constant of 0.009500/(M · s) at 30°C. At 40°C, the rate constant is 0.02300/(M · s). (A) What is the activation energy for this reaction? ______kJ/mol (B) What is the frequency factor, A? _______ /(M*s) (C) Predict the value of the rate constant at 50°C. ________ /(M*s)
The rate constant for a certain reaction is k = 1.90×10−3 s−1 . If the initial...
The rate constant for a certain reaction is k = 1.90×10−3 s−1 . If the initial reactant concentration was 0.850 M, what will the concentration be after 15.0 minutes? A zero-order reaction has a constant rate of 2.80×10−4 M/s. If after 75.0 seconds the concentration has dropped to 9.00×10−2 M, what was the initial concentration? A zero-order reaction has a constant rate of 2.80×10−4M/s. If after 75.0 seconds the concentration has dropped to 9.00×10−2M, what was the initial concentration?
A reaction has a rate constant of 1.28×10−4 s−1 at 25 ∘C and 0.233 s−1 at...
A reaction has a rate constant of 1.28×10−4 s−1 at 25 ∘C and 0.233 s−1 at 75 ∘C. What is the value of the rate constant at 15 ∘C?
A reaction has a rate constant of 1.22×10−4 s−1 at 28 ∘C and 0.229 s−1 at...
A reaction has a rate constant of 1.22×10−4 s−1 at 28 ∘C and 0.229 s−1 at 79 ∘C . What is the value of the rate constant at 16 ∘C ?
The rate constant for the reaction: 2A -> 2B + C is 0.881M-1*s-1 at 333 degrees...
The rate constant for the reaction: 2A -> 2B + C is 0.881M-1*s-1 at 333 degrees Celcius. (a) Starting with a concentration of 0.0955 M, calculate the concentration of A after 12.5 seconds. (b) Calculate the half-live when [A] = 0.0444 M.
22. The rate constant for a reaction is 4.62 x 10-3 s -1 at 300°C. The...
22. The rate constant for a reaction is 4.62 x 10-3 s -1 at 300°C. The activation energy for the reaction is 46 kJ/mol. What is the rate constant at 600°C? A. 1.28 x 10-1 s -1 <-Answer B. 4.66 x 101 s -1 C. 9.37 x 10-1 s -1 D. 4.72 x 103 s -1 E. 9.37 x 103 s -1 Please explain the process in many details.
a) At 25 °C the first-order rate constant for a reaction is 2.0 x 103 s-1....
a) At 25 °C the first-order rate constant for a reaction is 2.0 x 103 s-1. The activation energy is 15.0 kJ/mol. What is the value of the rate constant at 75 °C? (5 pts). b)A first-order reaction has rate constants of 4.6 x 10-2 s-1 and 8.1 x 10-2 s-1 at 0 °C and 20 °C, respectively. What is the value of the activation energy? (5 pts)
If a 1st order reaction has a rate constant of 2.30 s^-1 at 25 degree C,...
If a 1st order reaction has a rate constant of 2.30 s^-1 at 25 degree C, and at a frequency factor of 2.51*10^5, calculate the activation energy. A) 9715 J/mol B)186 J/mol C) -186 J/mol D) 2.51*10^4 J/mol E) 2.51*10^-4 J/mol
ADVERTISEMENT
Subjects
ADVERTISEMENT
Latest Questions
ADVERTISEMENT