HomeworkLib
Question
Could I get help on part B
3a. A certain first-order reaction is 35.5% complete in 4.90 minutes at 25°C. What is its rate constant e-kt K,=0.0895 min 64
science   chemistry   
0 0
Add a comment Improve this question Transcribed image text
Next > < Previous
Sort answers by oldest

Homework Answers

Answer #1

O lnk= InA - Ea k = 0.693. 0.01155 60 104,600 In ( 5x10) - 8.314XT In(.01155) = T (temperature ) = 349.43 K if we take tola

0 0
Add a comment
Know the answer?
Add Answer to:
Could I get help on part B 3a. A certain first-order reaction is 35.5% complete in...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions

  • sa ei 3a. A certain first-order reaction is 35.5% complete in 4.90 minutes at 25°C. What...

    sa ei 3a. A certain first-order reaction is 35.5% complete in 4.90 minutes at 25°C. What is its rate constant? vasta completa so n a zase. what is content

  • a certain first order reaction A to B is 25% complete in 42 minutes at 25...

    a certain first order reaction A to B is 25% complete in 42 minutes at 25 degrees celsius. What is the half life of the reaction

  • The uncoiling of DNA is a first order reaction. Its activation energy is 420 kJ at...

    The uncoiling of DNA is a first order reaction. Its activation energy is 420 kJ at 37degree C, the rate constant is 4.90 times 10^-4 min^-1. What is the half-life of the uncoiling if the organism has a temperature of 37degree C (104degreeF).

  • For the following first order reaction, the half-life is 28.3 and the [A]0 = 1.36. Calculate the rate constant.

    A.For the following first order reaction, the half-life is 28.3 and the [A]0  = 1.36. Calculate the rate constant.2A -> 3BB.Consider the following reaction. aA + bB -> cCwhose first and second half-lives are 38.2 and 19.1 minutes respectively. If the rate constant is equal to 0.2148 and [A]0 = 16.41, calculate the [A] at t 5.87 minutes.C.A researcher raises the temperature from 46.4 to 66 °C and finds that the rate of the reaction doubles. What was the activation energy (in...

  • Reaction 2A + B --> 3C is first order in B and zero order in A....

    Reaction 2A + B --> 3C is first order in B and zero order in A. The initial concentrations are 0.250M for A and B and 0.000M for C. The rate constant for a certain temperature is 1.30 x 10-3 s-1. Write down the rate law for this reaction in terms of disappearance of the reactant B. Calculate reaction half-life Calculate the molarity of B after 50.0 sec. Calculate the molarity of product C after 50.0 sec. Calculate molarity of...

  • 1) A certain first order reaction has a rate constant of 0.038 min-1. How much of...

    1) A certain first order reaction has a rate constant of 0.038 min-1. How much of the reactant will remain if the reaction is run for 2.5 hours and the initial concentration of the reactant is 0.35 M? 2)Which of the following correctly represents a first order integrated rate law? (Select all that are correct, there may be more than one.) A. [A]0 = [A]te-kt B. [A]t = [A]0ekt C. ln [A]t = ln [A]0 - kt D. [A]t =...

  • A certain first-order reaction (A products) has a rate constant of 5.40 10-3 s I at...

    A certain first-order reaction (A products) has a rate constant of 5.40 10-3 s I 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? at 27 °C A certain second-order reaction (B-products) has a rate constant of 1.05x10-3 M 1.s and an initial half-life of 266 s What is the concentration of the reactant B after one half-life?

  • Question 44 4 pts A certain first-order reaction A - Bis 25% complete in 42 min...

    Question 44 4 pts A certain first-order reaction A - Bis 25% complete in 42 min at 25°C. What is its rate constant? O 8.3 x 10-min-1 0 -3.3 * 10-2 min-1 O 11 min-1 6.8* 10 min-1 O 33* 10-2 min-1

  • Part A. A certain first-order reaction (A→products) has a rate constant of 3.90×10−3 s−1 at 45...

    Part A. A certain first-order reaction (A→products) has a rate constant of 3.90×10−3 s−1 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? Part B. A certain second-order reaction (B→products) has a rate constant of 1.90×10−3 M−1⋅s−1 at 27 ∘C and an initial half-life of 298 s . What is the concentration of the reactant B after one half-life?

  • Part A: A certain first-order reaction (A→products) has a rate constant of 6.30×10−3 s−1 at 45...

    Part A: A certain first-order reaction (A→products) has a rate constant of 6.30×10−3 s−1 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? Part B: A certain second-order reaction (B→products) has a rate constant of 1.30×10−3 M−1⋅s−1 at 27 ∘C and an initial half-life of 264 s . What is the concentration of the reactant B after one half-life?

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT