How do you rank SN1 reaction rates?

1 Answer
Apr 16, 2018

Concentration of substrate


In a Sn1 reaction the reaction rate does only depend on the concentration of the substrate.
If we for instance have a reaction where we use Br, with a chain on R, reacting with water, we would get the following reaction:

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There we have a substrate (as mentioned) which is Br, and a nucleophile "attacking" which is water #H_2O#.
The rate of the reaction is then described as following:


For Sn2 reactions the reaction rate would depend on both the substrate and the nucleophile.