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.
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
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Chapter 10 Solutions
Laboratory Techniques in Organic Chemistry
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- synthetic ion exchange resins. These resins are organic polymeric networks that contain functional groups that are permanently attached to the resin. One such functional group is sulfonic acid, -SO3H. When placed in water, the resin (being a large organic molecule) will not dissolve. However, the ionic functional groups become hydrated and the resin will swell as it takes up waters of hydration. The resin may then be thought of as a solid solution mixture with the functional groups being "dissolved" but the polymer remaining as a solid. The hydronium ion (H3O+) associated with acidic functional groups like sulfonic acid will dissociate just as it would if the acid were free of the resin. If other cations such as Cu2+ or Na+ are added to the resin, an ion-exchange reaction can occur: . Note that one H+ is released for each positive charge bound to the resin. Since the resin exchanges a hydrogen ion for a sodium ion in this reaction, sulfonic acid resins are called cation-exchange…arrow_forwardthe solubility of any organic material in a given solvent is due to the intermolecular forces present between the solvent and solute, hexanes (the alkanes isomers of C6H14) are rarely used for extraction purposes. What is a good reason for this experiment?arrow_forwardIn the preparation of 1,200 mL of 70% alcohol from stock absolute alcohol solution, what is the volume of Diluent that must be added to the stock absolute alcohol?arrow_forward
- Chemistry & Chemical ReactivityChemistryISBN:9781337399074Author:John C. Kotz, Paul M. Treichel, John Townsend, David TreichelPublisher:Cengage LearningEBK A SMALL SCALE APPROACH TO ORGANIC LChemistryISBN:9781305446021Author:LampmanPublisher:CENGAGE LEARNING - CONSIGNMENT