Question

1. The esterification reaction performed is an equilibrium reaction. Referring to the experimental procedure and laboratory data, identify the methods employed to drive the formation of product (ie. to shift the equilibrium position to the right). 2. In this experiment, the prepared ester is separated by extraction. In a typical organic extraction, the reaction mixture is treated with both an organic solvent and water to form two distinct layers. However, in this experiment, the reaction mixture is treated only with water. Explain then, how an organic layer is formed? 3. Following the initial extraction, the organic layer is treated with sodium bicarbonate (NaHCO3) solution, upon which effervescence is observed. Briefly explain why this is performed, and account for the formation of the effervescence. 4. The isoamyl acetate is isolated from this synthesis (quite) pure. Other than H1NMR, suggest a simplest method by which the purity of the isolated material can be assessed.

          1. The esterification reaction performed is an equilibrium reaction. Referring to the
experimental procedure and laboratory data, identify the methods employed to drive the
formation of product (ie. to shift the equilibrium position to the right).

2. In this experiment, the prepared ester is separated by extraction. In a typical organic
extraction, the reaction mixture is treated with both an organic solvent and water to form
two distinct layers. However, in this experiment, the reaction mixture is treated only with
water. Explain then, how an organic layer is formed?

3. Following the initial extraction, the organic layer is treated with sodium bicarbonate
(NaHCO3) solution, upon which effervescence is observed. Briefly explain why this is
performed, and account for the formation of the effervescence.

4. The isoamyl acetate is isolated from this synthesis (quite) pure. Other than H1NMR,
suggest a simplest method by which the purity of the isolated material can be assessed.

1. The esterification reaction performed is an equilibrium reaction. Referring to the
experimental procedure and laboratory data, identify the methods employed to drive the
formation of product (ie. to shift the equilibrium position to the right).

2. In this experiment, the prepared ester is separated by extraction. In a typical organic
extraction, the reaction mixture is treated with both an organic solvent and water to form
two distinct layers. However, in this experiment, the reaction mixture is treated only with
water. Explain then, how an organic layer is formed?

3. Following the initial extraction, the organic layer is treated with sodium bicarbonate
(NaHCO3) solution, upon which effervescence is observed. Briefly explain why this is
performed, and account for the formation of the effervescence.

4. The isoamyl acetate is isolated from this synthesis (quite) pure. Other than H1NMR,
suggest a simplest method by which the purity of the isolated material can be assessed.

Added by Susan R.

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