Question

Prelab Report Objectives (2 pts): Describe the central objectives of this experiment. Describe one learning outcome you expect to have gained at the end of this experiment. Procedure and Chemical Table (4 pts): In your Laboratory Notebook, you should create two experimental sections. Each section of the experiment should have a short description of the experiments you will conduct (a synopsis) so that you can record your observations during the experiment. Create a table for each experiment so that you can note the appearance of each reaction (12 in total) at 1 minute intervals, both at room temperature and elevated temperature. Include the name, structure and formula of all chemicals used in the experiment. Also, answer the following two prelab questions: 1) The reaction of 2-chloropropane with sodium hydroxide can occur via both Sp1 and Sn2 mechanisms. Draw arrow pushing schematics for each SN 1 and SN2 mechanism for this reaction (2 pts). Page 41

Answer 1

Answer:

In sN¹ reaction, the first step is the formation of carbocation which is slow and the rate determining step. since this step involves only one molecule as the reactant it is called unimolecular. It is substitution and the OH^- ion is a nucleophile. Hence the name substitution nucleophilic unimolecular sN¹ reaction.

The next step is fast where the carbocation is attacked by the nucleophile to form the product.

CH3 GoH as slow Colla A so slow c 6 + CH3 H CH3 Fast CH3 SNI 'c-OH it Cha

In sN² reaction, the first step is the formation of an intermediate due to the collision of the nucleophile on the halide.The unstable intermediate dissociates to give the product. Here the formation of intermediate is the slow process and determines the rate. Since it involves the collision between two molecules on the reactant side, it is bi molecular. Hence the name sN².

C3 グ)