The reason to obtain only one liquid phase with no interface after the solution is shaken second time should be explained. Concept introduction: Immiscible liquids are the liquid system that contains two solvent insoluble with each other and consists of two phases. As both the liquid form a separate layer and does not interact with each, therefore, they are independent of each other and contribute to their own characteristics. Oil and water form two different layers, when mixed with other so these are immiscible in each other.

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Answer 1

Question

Chapter 10, Problem 1Q

Interpretation Introduction

Interpretation:

The reason to obtain only one liquid phase with no interface after the solution is shaken second time should be explained.

Concept introduction:

Immiscible liquids are the liquid system that contains two solvent insoluble with each other and consists of two phases. As both the liquid form a separate layer and does not interact with each, therefore, they are independent of each other and contribute to their own characteristics. Oil and water form two different layers, when mixed with other so these are immiscible in each other.

Expert Solution & Answer

Explanation of Solution

The aqueous solution of two solvents contains a non-polar ethyl ether and highly polar water. Both the solvents are immiscible with each other due to a very large difference in their density.

As diethyl ether is less dense than water it forms an upper layer in extraction equipment while the water forms a lower layer and solute distributed between aqueous and organic layer according to their solubility. After removal of lower layer, only diethyl ether remains in equipment and addition of another 10 mL diethyl ether to it produces only one phase. Therefore, only one liquid phase is obtained without any interface.

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List and describe two methods that can used to improve the separation of a liquid mixture by fractional distillation

12 g of unknown organic sample was dissolve in 706 mL of Dicloromethane (DCM). The boiling point of benzene was increased by 2.72oC. Determine the molecular weight of the unknown sample? Kb of DCM = 2.42oC/m Bb of benzene = 39.6 oC density of benzene = 1.33 g/mL at 25 °C Round your answer to the nearest whole number, no units required.

Caffeine can be extracted from tea bags using liquid-liquid extraction. After extracting the tea in hot water, sodium carbonate can be added to form the starting aqueous solution. In a separatory funnel containing 20 mL of diethyl ether, the same volume of aqueous solution will be added. The same procedure will be done in another separatory funnel but this time the organic solvent is hexane. Both separatory funnels will be shaken to release the pressure, and let stand to promote layer separation. The organic layers now containing caffeine will be separated into separate beakers. The beakers were then dried using calcium chloride (CaCl2). The beakers containing both solvents will be dried to obtain the isolated caffeine. Why is it important to release the pressure by venting out the separatory funnel? How will this affect the extraction when bypassed?

Answer 2

Question

Chapter 10, Problem 1Q

Interpretation Introduction

Interpretation:

The reason to obtain only one liquid phase with no interface after the solution is shaken second time should be explained.

Concept introduction:

Immiscible liquids are the liquid system that contains two solvent insoluble with each other and consists of two phases. As both the liquid form a separate layer and does not interact with each, therefore, they are independent of each other and contribute to their own characteristics. Oil and water form two different layers, when mixed with other so these are immiscible in each other.

Expert Solution & Answer

Explanation of Solution

The aqueous solution of two solvents contains a non-polar ethyl ether and highly polar water. Both the solvents are immiscible with each other due to a very large difference in their density.

As diethyl ether is less dense than water it forms an upper layer in extraction equipment while the water forms a lower layer and solute distributed between aqueous and organic layer according to their solubility. After removal of lower layer, only diethyl ether remains in equipment and addition of another 10 mL diethyl ether to it produces only one phase. Therefore, only one liquid phase is obtained without any interface.

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Answer 3

Question

Chapter 10, Problem 1Q

Interpretation Introduction

Interpretation:

The reason to obtain only one liquid phase with no interface after the solution is shaken second time should be explained.

Concept introduction:

Immiscible liquids are the liquid system that contains two solvent insoluble with each other and consists of two phases. As both the liquid form a separate layer and does not interact with each, therefore, they are independent of each other and contribute to their own characteristics. Oil and water form two different layers, when mixed with other so these are immiscible in each other.

Expert Solution & Answer

Explanation of Solution

The aqueous solution of two solvents contains a non-polar ethyl ether and highly polar water. Both the solvents are immiscible with each other due to a very large difference in their density.

As diethyl ether is less dense than water it forms an upper layer in extraction equipment while the water forms a lower layer and solute distributed between aqueous and organic layer according to their solubility. After removal of lower layer, only diethyl ether remains in equipment and addition of another 10 mL diethyl ether to it produces only one phase. Therefore, only one liquid phase is obtained without any interface.

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Answer 4

Question

Chapter 10, Problem 1Q

Interpretation Introduction

Interpretation:

The reason to obtain only one liquid phase with no interface after the solution is shaken second time should be explained.

Concept introduction:

Immiscible liquids are the liquid system that contains two solvent insoluble with each other and consists of two phases. As both the liquid form a separate layer and does not interact with each, therefore, they are independent of each other and contribute to their own characteristics. Oil and water form two different layers, when mixed with other so these are immiscible in each other.

Expert Solution & Answer

Explanation of Solution

The aqueous solution of two solvents contains a non-polar ethyl ether and highly polar water. Both the solvents are immiscible with each other due to a very large difference in their density.

As diethyl ether is less dense than water it forms an upper layer in extraction equipment while the water forms a lower layer and solute distributed between aqueous and organic layer according to their solubility. After removal of lower layer, only diethyl ether remains in equipment and addition of another 10 mL diethyl ether to it produces only one phase. Therefore, only one liquid phase is obtained without any interface.

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Answer 5

Chapter 10, Problem 1Q

Interpretation Introduction

Interpretation:

The reason to obtain only one liquid phase with no interface after the solution is shaken second time should be explained.

Concept introduction:

Immiscible liquids are the liquid system that contains two solvent insoluble with each other and consists of two phases. As both the liquid form a separate layer and does not interact with each, therefore, they are independent of each other and contribute to their own characteristics. Oil and water form two different layers, when mixed with other so these are immiscible in each other.

Expert Solution & Answer

Explanation of Solution

The aqueous solution of two solvents contains a non-polar ethyl ether and highly polar water. Both the solvents are immiscible with each other due to a very large difference in their density.

As diethyl ether is less dense than water it forms an upper layer in extraction equipment while the water forms a lower layer and solute distributed between aqueous and organic layer according to their solubility. After removal of lower layer, only diethyl ether remains in equipment and addition of another 10 mL diethyl ether to it produces only one phase. Therefore, only one liquid phase is obtained without any interface.

Answer 6

Chapter 10, Problem 1Q

Interpretation Introduction

Interpretation:

The reason to obtain only one liquid phase with no interface after the solution is shaken second time should be explained.

Concept introduction:

Immiscible liquids are the liquid system that contains two solvent insoluble with each other and consists of two phases. As both the liquid form a separate layer and does not interact with each, therefore, they are independent of each other and contribute to their own characteristics. Oil and water form two different layers, when mixed with other so these are immiscible in each other.

Expert Solution & Answer

Explanation of Solution

The aqueous solution of two solvents contains a non-polar ethyl ether and highly polar water. Both the solvents are immiscible with each other due to a very large difference in their density.

As diethyl ether is less dense than water it forms an upper layer in extraction equipment while the water forms a lower layer and solute distributed between aqueous and organic layer according to their solubility. After removal of lower layer, only diethyl ether remains in equipment and addition of another 10 mL diethyl ether to it produces only one phase. Therefore, only one liquid phase is obtained without any interface.

Answer 7

Chapter 10, Problem 1Q

Interpretation Introduction

Interpretation:

The reason to obtain only one liquid phase with no interface after the solution is shaken second time should be explained.

Concept introduction:

Immiscible liquids are the liquid system that contains two solvent insoluble with each other and consists of two phases. As both the liquid form a separate layer and does not interact with each, therefore, they are independent of each other and contribute to their own characteristics. Oil and water form two different layers, when mixed with other so these are immiscible in each other.

Answer 8

Expert Solution & Answer

Explanation of Solution

The aqueous solution of two solvents contains a non-polar ethyl ether and highly polar water. Both the solvents are immiscible with each other due to a very large difference in their density.

As diethyl ether is less dense than water it forms an upper layer in extraction equipment while the water forms a lower layer and solute distributed between aqueous and organic layer according to their solubility. After removal of lower layer, only diethyl ether remains in equipment and addition of another 10 mL diethyl ether to it produces only one phase. Therefore, only one liquid phase is obtained without any interface.

Answer 9

Expert Solution & Answer

Answer 10

Expert Solution & Answer

Answer 11

Ch. 10 - Prob. 1Q Ch. 10 - Prob. 2Q Ch. 10 - Prob. 3Q Ch. 10 - Prob. 4Q Ch. 10 - Prob. 5Q

Explanation of Solution

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Chapter 10 Solutions