EBK EXPERIMENTAL ORGANIC CHEMISTRY: A M
6th Edition
ISBN: 9781305687875
Author: Gilbert
Publisher: CENGAGE LEARNING - CONSIGNMENT
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Question
Chapter 5.4, Problem 9E
Interpretation Introduction
Interpretation: The reason of performing a simple distillation needs to be determined from the given options.
Concept Introduction: Solvent extraction method is also called as liquid-liquid extraction. It is the method that is used to separate compounds on the basis of their relative solubility in two different immiscible solvents.
Here, the immiscible solvents cannot get mixed up together therefore they make two separate layers. In the extraction of a solute from one liquid, another immiscible solvent must be used. Usually water is used with certain organic solvent as organic solvent and water are immiscible into each other. At equilibrium the ratio of concentration of solute is constant in each layer that can be represented by partition coefficient or distribution coefficient. It is the ratio of the concentration of a substance in one medium (C1) to the concentration in a second medium (C2) at equilibrium.
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A separation of the mixture of substances X and Y is carried out by extraction of Craig using an organic solvent of the same volume.
What is the dissolved Y fraction in the 18th tube after 24 times of removal if Dy = 5 is known
What are emulsions? Why do they form during extractions? How is the formation of an emulsion minimized?
a) What percent of X can be extracted with 100 mL hexane?
b) What will be the percent X remaining in water after extraction with four batches of 25 mL hexane?
c) Using 100 mL water sample and portions of 25 mL hexane, determine the minimum number of extractions to obtain an efficiency of approximately 99 %
Show solution and explanation.
Chapter 5 Solutions
EBK EXPERIMENTAL ORGANIC CHEMISTRY: A M
Ch. 5.3 - Prob. 1ECh. 5.3 - Prob. 2ECh. 5.3 - Prob. 3ECh. 5.3 - Prob. 4ECh. 5.3 - Prob. 5ECh. 5.3 - Prob. 6ECh. 5.3 - Prob. 7ECh. 5.3 - Prob. 8ECh. 5.3 - Prob. 9ECh. 5.3 - Prob. 10E
Ch. 5.3 - Prob. 11ECh. 5.3 - Prob. 12ECh. 5.3 - Prob. 13ECh. 5.3 - Prob. 14ECh. 5.3 - Prob. 15ECh. 5.3 - Prob. 16ECh. 5.3 - Prob. 17ECh. 5.3 - Prob. 18ECh. 5.3 - Prob. 19ECh. 5.3 - Prob. 20ECh. 5.3 - Prob. 21ECh. 5.3 - Prob. 22ECh. 5.4 - Prob. 1ECh. 5.4 - Prob. 2ECh. 5.4 - Prob. 3ECh. 5.4 - Prob. 4ECh. 5.4 - Prob. 5ECh. 5.4 - Prob. 6ECh. 5.4 - Prob. 7ECh. 5.4 - Prob. 8ECh. 5.4 - Prob. 9ECh. 5.4 - Prob. 10ECh. 5.4 - Prob. 11ECh. 5.4 - Prob. 12E
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