View the step-by-step solution to:

The decomposition in water of an insecticide used for mosquito control follows first order kinetics irate constant of 1.45 years -1 at 10 degrees...

The decomposition in water of an insecticide used for mosquito control follows first order kinetics irate constant of 1.45 years-1 at 10 degrees Celsius. Summertime spraying near a small Lake results in a lake concentration of 5.0 times 10-7 M for the insecticide. 


a.) Assuming the average temperature of the lake is 10 degrees Celsius and no more insecticide enters the lake what would be the lake concentration of the insecticide after one year?


b.) How long will it take for the insecticide concentration in the lake to drop to 3.0 * 10-7 M?


c.) what is the half life, t1/2, for the decomposition of the insecticide?

Top Answer

(a) For first order; lnAt = -kt + lnAo lnAt = - 1.45 x 1 + ln (5.0 x 10^-7) = -15.9587 At = e^(-15.9587) = 1.2 x 10^-7... View the full answer

Sign up to view the full answer

Why Join Course Hero?

Course Hero has all the homework and study help you need to succeed! We’ve got course-specific notes, study guides, and practice tests along with expert tutors.

-

Educational Resources
  • -

    Study Documents

    Find the best study resources around, tagged to your specific courses. Share your own to gain free Course Hero access.

    Browse Documents
  • -

    Question & Answers

    Get one-on-one homework help from our expert tutors—available online 24/7. Ask your own questions or browse existing Q&A threads. Satisfaction guaranteed!

    Ask a Question
Ask a homework question - tutors are online