At 25°C the half-life for the first-order decomposition of a pesticide solution is 15.0 hrs.
(a) Calculate the rate constant for the reaction.
(b) If the starting concentration of pesticide is 0.500 M, what concentration will remain after 120 min at 25°C?
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At 25°C the half-life for the first-order decomposition of a pesticide solution is 15.0 hrs. (a)...
at 25 degrees celsius the rate constant for the first order decomposition of a pesticide solution is 6.40x10^-3 min^-1. If the starting concentration of pesticide is 0.0314 M, what concentration will remain after 62.0 min @ 25 degrees celsius? Correct answer is 2.11X10^-2M Can someone please explain how to get this answer?
At 25deg C, the rate constant for the first-order decomposition of a pesticide solution is 6.4 x 10^-3min^-1. If the starting concentration of the pesticide is 0.0314 M, what concentration will remain after 62.0 min at 25deg C?
2. Answer the following questions by connecting the half-life of each first-order reaction to the rate constant. a. The rate constant of a first-order reaction is 2.43 × 10–2 min–1. What is the half-life of the reaction? (2 points) b. A first-order reaction has a rate constant of 0.547 min-1. How long will it take a reactant concentration 0.14 M to decrease to 0.07 M? (2 points) c. The half-life of a first-order reaction is 5.47 min. What is the...
8.) A common garden pesticide decomposes following first-order reaction kinetics. If the half-life of the pesticide is 12 years, what is the rate constant k for the decomposition reaction? (5 pts) (do NOT forget proper units) In 1/2 0.693 112 1/2 k k k[A]o Answer: k=
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