Rate of Reaction: How Does H+ Concentration Affect It?

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SUMMARY

The discussion centers on the rate law for the reaction Rate = k[BrO3-][Br-][H+]². When the concentration of H+ is decreased by a factor of 3, the rate of reaction changes by a factor of 1/9, not 1/8. This is derived from the squared relationship of H+ in the rate law, where (1/3)² equals 1/9. The misunderstanding arose from misinterpreting the exponent applied to the concentration of H+.

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Homework Statement


Consider the reaction with the rate law, Rate = k[BrO3-][Br-][H+]2
By what factor does the rate change if the concentration of H+ is decreased by a factor of 3? Just put in the number as a whole number or fraction.


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The Attempt at a Solution


Isnt the answer 1/8 ?
2^3 = 8
 
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No, it is not 2concentration but concentration2.
 

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