Consider the first-order reaction described by the equation Cyclopropane gas isomerizes to propene gas. At a certain temperature, the rate constant for this reaction is 5.05 × 10 − 4 s − 1 . Calculate the half-life of cyclopropane at this temperature. t 1 / 2 = s Given an initial cyclopropane concentration of 0.00670 M , calculate the concentration of cyclopropane that remains after 2.00 hours. concentration.
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Ответ:
The half-life would be 1372 seconds.
The concentration remains after 2 hours is 0.000177 M.
Explanation:
Given the initial concentration
of was
.
And the rate constant
is ![5.05\times 10^{-4}\ s^{-1}](/tpl/images/0520/1621/68c79.png)
We need to calculate the half-life and the concentration remains
after 2 hours.
First, we will use the formula of half-life of the first order reaction.
So, half-life would be 1372 seconds.
Now, we will find its concentration after 2 hours. That means![t=2\times60\times60=7200\ seconds](/tpl/images/0520/1621/33ece.png)
Use the equation
So, the concentration remains after 2 hours is 0.000177 M.
Ответ:
allegro,od em
Step-by-step explanation:
anyways historia much 2 plus to lets do it 4 lol