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Tanaz
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#1
Report Thread starter 15 years ago
#1
hey guys...
in the organic part on unit5, could some1 explain to me whats meant by SN1 and SN2 reactions??...help!!!
thanxxx
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ianaf18
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#2
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This is what I posted in a previous post:

A brief description of what i think they are;

SN1 means one reactant appears in the rate equation so the rate depends on the concetration only one reactant.
eg the formation of a carbocation or the formation of an electrophile.

SN2 means two reactants appear in the rate equation so the rate depends on the concentration of two reactants. Meaning a transistion state is formed and that the formation of it is the rate determining step.

I hope that makes sense.
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caius
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#3
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Sn1 - 1st order nucleophilic substitution (usually tertiary halogenoalkanes)

Sn2 - 2nd order nucleophilic substitution (usually primary halogenoalkanes)
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