Explore BrainMass

Explore BrainMass

    The Concentration-Time Equation

    Not what you're looking for? Search our solutions OR ask your own Custom question.

    This content was COPIED from BrainMass.com - View the original, and get the already-completed solution here!

    The first-order rate constant for the decomposition of an insecticide in water at degC is 1.45 1/yr. A quantity of this insecticide is washed into a lake on June 1, leading to a concentration of 5.0 x 10-7 g/cm3 of water. Assume that the effective temperature of the lake is degC.

    a. What is the concentration of the insecticide on June 1 of the following year?
    b. How long will it take for the concentration of the insecticide to decrease to 3.0 x 10-7 g/cm3?

    © BrainMass Inc. brainmass.com March 4, 2021, 6:23 pm ad1c9bdddf
    https://brainmass.com/chemistry/chemical-kinetics/the-concentration-time-equation-42552

    Solution Preview

    The first order rate equation is:

    ln([A]t/[A]o) = -kt

    where [A]t is the concentration at time t, [A]o is the ...

    Solution Summary

    The solution provides a clear, concise set of calculations to find the concentration of leaked insecticide in a lake using the concentration-time equation, accompanied by written explanation of the relevant theory where needed.

    $2.49

    ADVERTISEMENT