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Topic: Help with rate law and rate constant  (Read 4490 times)

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Offline marco9905

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Help with rate law and rate constant
« on: May 03, 2008, 02:36:49 AM »
Can somebody please help me with is question as i have been trying to get the answer for a while now and i have not been able to.

Suppose that the rate of the reaction is found to be 1.5 × 10^-6 mol L-1 s-1 when [H2O2]0 = 0.0010 M and 5.9 × 10-6 mol L-1 s-1 when [H2O2]0 = 0.0020 M. What is the rate law and rate constant for the reaction implied by these results? Include appropriate units for the rate constant.

Offline Kuahji

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Re: Help with rate law and rate constant
« Reply #1 on: May 03, 2008, 03:38:10 AM »
What all have you tried so far? 

Rate=k[H2O2]^m

If I understood it correctly.  What is [H2O2]0, why is the zero there?  Maybe something I have not done yet. 

Offline LQ43

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Re: Help with rate law and rate constant
« Reply #2 on: May 03, 2008, 10:10:10 AM »
What is [H2O2]0, why is the zero there?  Maybe something I have not done yet. 

This is the initial concentration [H2O2]o

Suppose that the rate of the reaction is found to be 1.5 × 10^-6 mol L-1 s-1 when [H2O2]0 = 0.0010 M and 5.9 × 10-6 mol L-1 s-1 when [H2O2]0 = 0.0020 M. What is the rate law and rate constant for the reaction implied by these results? Include appropriate units for the rate constant.

 compare the change in the initial concentration with the change in the rate of the reaction

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