Concept explainers
(a)
Interpretation:-The reason for washing the organic layer with a solution of sodium carbonate, in the work-up procedure, needs to be given.
Concept Introduction: The process of isolating and purifying products, formed during a
(b)
Interpretation:- In the work-up procedure, the organic layer was washed with a solution of sodium carbonate, and the reaction that occurs during this wash along with the gas that gets evolved needs to be written.
Concept Introduction:- An alkali when reacts with an acid, water is one of the products formed.
(c)
Interpretation: The organic layer is being washed with a solution of sodium carbonate, in a work-up procedure, and the reason regarding its importance to vent a separatory funnel for performing this wash, needs to be given.
Concept Introduction: A laboratory glassware apparatus that is used to separate liquids, from a mixture of the same into heterogeneous solvent phases with varying densities, is called a separatory funnel.
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Chapter 9 Solutions
Experimental Organic Chemistry: A Miniscale & Microscale Approach (Cengage Learning Laboratory Series for Organic Chemistry)
- Draw a flow chart show how you would extract the following three compounds by extraction. H₂C-CH3 H₂N ढे OHarrow_forwarda. Sodium hydroxide and ethanol are added to 2-naphthol and then refluxed for thirty minutes before the addition of 1-bromobutane. Why is it important to allow this mixture to reflux before the addition of 1-bromobutane? b. Will sodium hydroxide or ethanol react most with 2-naphthol? Explain why one substance will react more with 2-naphthol than the other.arrow_forward10. Chapter 16: Organic synthesis- The Last Two Steps in a Multi-step Synthesis of Methyl m-nitrobenzoate CH,OH a. What was the purpose of refluxing in this lab? b. What was the purpose of boiling chips? © Why was t-butyl methyl ether the used? d. What layer was the sulfuric acid and methanol in? To pevent bumping Why was saturated aqueous sodium bicarbonate added? L Why was saturated sodium chloride added? g Why was anhydrous calcium chloride added? h. Purpose of simple distillation? To prevent renatant solven loss ta a heated ckemical eachion MacBook Airarrow_forward
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- A certain compound is known to contain an aromatic benzene ring but failed to produce a fragrant yellow solution upon subjecting it to the nitration test. What may be a possible explanation for this? A. The benzene ring is part of a highly conjugated, blue dye molecule. B. The benzene ring contains a strong electron-withdrawing group. C. The benzene ring has no available sites left for electrophilic attack. D. All of the given. Kindly explain your answer in detail.arrow_forward1. Predict the position (top and bottom layer) of the organic and aqueous layers in the following extractions: a. Cyclohexane and saturated sodium chloride solution b. Chloroform and 5% sodium hydroxide solution. c. Methyl tert-butyl ether and waterarrow_forwarda. Give at least three characteristics of dichloromethane that makes it a good extracting solvent for the alkaloid.b. Why is it necessary to remove a stopper from a separatory funnel when the liquid is being drained from it through a stopcock?c. What are emulsions? Why do they form during extractions? How is the formation of an emulsion minimized? How are emulsions removed?arrow_forward
- EBK A SMALL SCALE APPROACH TO ORGANIC LChemistryISBN:9781305446021Author:LampmanPublisher:CENGAGE LEARNING - CONSIGNMENT