Interpretation:The reason for diethyl ether to be a good extraction solvent than acetone needs to be explained.
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 solute concentration ratio is constant in each layer which is represented by partition or distribution coefficient. At equilibrium, 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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Chapter 5 Solutions
EBK EXPERIMENTAL ORGANIC CHEMISTRY: A M
- Write a balanced equation for the reaction of benzoic acid with hydroxide ion. Why is it necessary to extract the ether layer with sodium hydroxide?arrow_forwardWhy is benzene diazonium chloride not stored and is used immediately after its preparation?arrow_forwardIn the Iodination of Acetone, Why were the reagents equilibrated in water bath before mixing?arrow_forward
- 1.Device a flow chart that outlines the separations performed in acid-base extraction. Acid- benzoic acid Base- p-nitroaniline Neutral compound - azobenzene 2. Write all chemical reactions that occur in the extraction procedure.arrow_forwardWhy is it necessary to store the prepared lysates in a very low temperature?arrow_forwardIn this experiment, you preformed an extraction to separate the aqueous and organic solvent layers. Why was the organic solvent layer on the bottom in the separatory funnel? What would cause the organic solvent layer to be the top layer? Explain your answer.arrow_forward
- What is the reason behind the portion-by-portion evaporation of DCM in the extraction of eugenol?arrow_forwardWhy is the 4-methoxyphenyl acetate organic layer subjected to washes with saturated sodium bicarbonate solution, water and brine when carrying out a separatory funnel extraction?arrow_forwardEXTRACTION SEPARATION OF BENZOIC ACID FROM A MIXTURE OF BENZOIC ACID AND NAPHTHALENEarrow_forward
- What makes ethyl acetate a suitable or unsuitable solvent? What concerns would you have if you were to run a column using hexanes as the solvent for the whole column? Come up with an appropriate solvent gradient to get the best separation of all three compoundsarrow_forwardWhy is 95% alcohol a good solvent for extraction?arrow_forwardIn a liquid-liquid extraction of benzoic acid and biphenyl using NaOH, which layer will contain the biphenyl and which will contain the benzoic acid? Will the organic layer be on the top or the bottom of the separatory funnel?arrow_forward
EBK A SMALL SCALE APPROACH TO ORGANIC LChemistryISBN:9781305446021Author:LampmanPublisher:CENGAGE LEARNING - CONSIGNMENT