David asks…
The decomposition of H2O2 is 1st order with rate constant k = 3.66 x 10^-3sec^-1. ?
If the initial concentration of H2O2 is 405 M how long will it take, in minutes for the concentration to drop to 134 M?
admin answers:
Ln 134 = – 3.66 x 10^-3 t + ln 405
4.90 = – 3.66 x 10^-3 t + 6.00
1.1 = 3.66 x 10^-3 t
t = 300.5 s
Ruth asks…
What is the reaction order for H2O2 decomposition? (AP Lab)?
In this experiment the reaction was catalyzed with KI (iodide was the only reactant though). My data is unreliable, my pressure sensor was broken so I had to copy data from another group. The reaction order with respect to H2O2 that I obtained was 0 and for the Iodide i got a ~3.3. Has anyone else done this lab? Can you tell me your rate law please? My rate constant for 16.8 degrees celsius was 590, but I have a feeling this is wrong too.
admin answers:
I don’t know, but have you tried researching wikipedia?
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