A substance decomposes with a rate constant of 9.05 × 10-4 5-1 How long does it take for 18.5% of the substance to decompose? Consider that in a first order rate law, the concentration of reactant remaining decreases exponentially.
Added by Tammy J.
Step 1
The formula for a first order reaction is: ln([A]0/[A]) = kt where: - [A]0 is the initial concentration of the reactant - [A] is the concentration of the reactant at time t - k is the rate constant - t is the time In this case, we are given that 18.5% of the Show more…
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