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Ne4ueva [31]
3 years ago
10

2. In the SN1 mechanism, the second step is attack of the nucleophile, so increasing the nucleophile concentration should speed

up this step. Why, then, do we say that the rate of an SN1 reaction does not depend on the concentration of the nucleophile?
Biology
2 answers:
dolphi86 [110]3 years ago
8 0

Answer:because the rate determining step is not the second step where nucleophilic concentration is important but rather the first step is the rate determining step in SN1 reaction

Explanation: the rate determining step is the slowest step in a reaction chain and SN1 reaction mechanism is first characterized by formation of a carboncation which is an endothermic reaction hence the is the slowest step in the chain reaction

zysi [14]3 years ago
4 0

Answer:

The rate of reaction depends on the rate determining step of a nonelementary reaction

Explanation:

A non elementary reaction is a reaction that proceeds in a sequence of steps. One of the steps is usually the slowest step in the reaction sequence. This slowest step is called the rate determining step. In an SN1 reaction, the rate determining step is the formation of the carbocation, the concentration of the carbocation affects the rate of reaction because it is involved in the rate determining step. The attack of the nucleophile is a fast step and does not affect the rate of reaction.

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