Chemistry, 19.09.2019 16:30, buddyshaw76
The decomposition of a to b is a first-order reaction with a half-life of 14.2 min: a → 2b if the initial concentration of a is 0.304 m, how long will it take for the concentration of a to decrease by 43.0 %?
Answers: 2
![Ln [A] = -k.t + Ln [A]_{0}](/tpl/images/0243/4301/30b90.png)
![[A] = \frac{43.0}{100}x[A]_{0}](/tpl/images/0243/4301/7dcf6.png)
![Ln \frac{43.0}{100} [A]_{0} = -k.t + Ln [A]_{0}](/tpl/images/0243/4301/2b903.png)
![(Ln \frac{43.0}{100} [A]_{0} - Ln [A]_{0} ) / -k = t](/tpl/images/0243/4301/1d19e.png)
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The decomposition of a to b is a first-order reaction with a half-life of 14.2 min: a → 2b if the i...
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