Chemistry, 03.11.2020 16:30 phillipsangela014
The decomposition of hydrogen peroxide follows first order kinetics and has a rate constant of 2.54 x 10-4 s-1 at a certain temperature. If the concentration of hydrogen peroxide is 0.321 M after 855 s , what was the initial concentration of hydrogen peroxide at this temperature
Answers: 1
![[A]_0=0.400M](/tpl/images/0863/3128/16887.png)
![r=-k[A]](/tpl/images/0863/3128/b68e4.png)
![\frac{d[A]}{dt} =-k[A]](/tpl/images/0863/3128/8431c.png)
![ln(\frac{[A]}{[A]_0} )=-kt](/tpl/images/0863/3128/47002.png)
![[A]_0=\frac{[A]}{exp(-kt)}](/tpl/images/0863/3128/0b706.png)
![[A]_0=\frac{0.321M}{exp(-2.54x10^{-4}s^{-1}*855s)}](/tpl/images/0863/3128/29afa.png)
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The decomposition of hydrogen peroxide follows first order kinetics and has a rate constant of 2.54...
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