Pre-lab questions (all answers due day 1 of the lab sequence) 1) The El and E2 r

Question

Pre-lab questions (all answers due day 1 of the lab sequence) 1) The El and E2 reactions both require 13.3 mmol of their respective starting materials (2- methyl-2-butanol and 2-c muenhlon-2-methylbutane) Calculate the mass (e) of each of these 2) The isomeric alkene products of the El reaction are removed from the reaction mixture by starting materials to use. (2 pts) distillation as the reaction proceeds. H2SO4 (aq) + H2O ?? bp 101°c bp 31 °C Explain how distillation of the El reaction mixture: bp38 ? a) assists with separating the products from the starting material; (2 pts) b) drives the El reaction to completion. (2 pts)

Explanation / Answer

Molar masses

2-methyl-2-butanol = 88 g/mol

2-methyl-2-chlorobutane = 106.5 g/mol

E1 OR E2 BOTH REACTIONS REQUIRE THE STARTING MATERIALS .1 MOLE

13.3 m MOLES = 13.3/1000

= 0.00133 MOLES

= 0.117 g

= 0.1416 g

2 a. Due to the large difference in the boiling points of the reactant and isomeric products (65 degree celsius) the separation of the isomeric products from the reaction mixture is very much convenient of separation method.

b) The separation of the reaction mixture from the reaction site by distillation helps the elimination reaction to proceed in the forward reaction. The reaction is driven right side to completely give out the products and the reaction completes with the reactant completely consumed to yield products.

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