You have dissolved 2 g of a mixture of benzoic acid and naphthalene in 30 ml of diethyl ether and started the extraction procedure.Match the question with an appropriate answer from the drop-box. Before answering the questions below get the data about density of the solvents you use.You transferred the solution of benzoic acid and naphthalene in diethyl ether to the separatory funnel and added on top15 ml of 2.5 M NaOH solution. Where you would find the aqueous solution, at the top or at the bottom of the separatory funnel?You transferred prepared solution of benzoic acid and naphthalene in diethyl ether to the separatory funnel and added on top15 ml of 2.5 M NaOH solution and you shook the separatory funnel. Where you would find the aqueous solution, at the top or at the bottom of the separatory funnel?After completing the extraction the procedure in the textbook recommends you to transfer the organic solution into a clean Erlenmeyer flask. What is the composition of organic solution?After completing the extraction the procedure in the textbook recommends you to transfer the aqueous layer into a clean Erlenmeyer flask. What is the composition of aqueous layer?Possible answers for all above questions:1.The aqueous layer is a solution of benzoic acid in water2. The organic solution is a solution of sodium benxoate in 2.5M aqueous solution3. The aqueous layer is a solution of sodium benzoate and excess of sodium hydroxide in water4. Aqueous solution will be found at the bottom of the separatory funnel5. The organic solution is a solution of aphthalene in diethyl ether6.The aqueous layer is a solution of sodium benzoate in water7.The organic solution is a solution of benzoic acid in diethyl ether8. The organic solution is a solution of naphthalene an benzoic acid in diethyl ether

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maddy98691 maddy98691

29-10-2019
Chemistry

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You have dissolved 2 g of a mixture of benzoic acid and naphthalene in 30 ml of diethyl ether and started the extraction procedure.Match the question with an appropriate answer from the drop-box. Before answering the questions below get the data about density of the solvents you use.You transferred the solution of benzoic acid and naphthalene in diethyl ether to the separatory funnel and added on top15 ml of 2.5 M NaOH solution. Where you would find the aqueous solution, at the top or at the bottom of the separatory funnel?You transferred prepared solution of benzoic acid and naphthalene in diethyl ether to the separatory funnel and added on top15 ml of 2.5 M NaOH solution and you shook the separatory funnel. Where you would find the aqueous solution, at the top or at the bottom of the separatory funnel?After completing the extraction the procedure in the textbook recommends you to transfer the organic solution into a clean Erlenmeyer flask. What is the composition of organic solution?After completing the extraction the procedure in the textbook recommends you to transfer the aqueous layer into a clean Erlenmeyer flask. What is the composition of aqueous layer?Possible answers for all above questions:1.The aqueous layer is a solution of benzoic acid in water2. The organic solution is a solution of sodium benxoate in 2.5M aqueous solution3. The aqueous layer is a solution of sodium benzoate and excess of sodium hydroxide in water4. Aqueous solution will be found at the bottom of the separatory funnel5. The organic solution is a solution of aphthalene in diethyl ether6.The aqueous layer is a solution of sodium benzoate in water7.The organic solution is a solution of benzoic acid in diethyl ether8. The organic solution is a solution of naphthalene an benzoic acid in diethyl ether

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jufsanabriasa jufsanabriasa · Answer 1 · 2019-11-01T13:42:08+01:00

Answer:

Answers are in the explanation.

Explanation:

This process is a liquid-liquid extraction where solutes changes of solvent by affinity.

a) Where you would find the aqueous solution, at the top or at the bottom of the separatory funnel?

The density of diethyl ether is 0,713 g/mL and density of water is 1 g/mL. As the water is heavier, the aqueous solution will be found at the botton of the separatory funnel.

b) What is the composition of organic solution?

Naphtalene is insoluble in water NaOH but soluble in diethyl ether, benzoic acid is very soluble in water NaOH (because it reacts with NaOH producing sodium benzoate) and soluble in diethyl ether. That means that organic solution is a solution of naphtalene and benzoic acid in diethyl ether.

c) What is the composition of aqueous layer?

In the same way, the aqueous layer is a solution of sodium benzoate and excess of sodium hydroxide in water.

I hope it helps!