The liquid-liquid extraction technique takes advantage of the solubility difference of a given compound in two immiscible solvents. Group of answer choices True False
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- A student was asked to identify the best recrystallization solvent for compound X. Below is the experimental data obtained. Which is the best solvent of choice? Observations: vs= very soluble; so=soluble; ss= slightly soluble; in = insoluble Test tube 1 2 3 Solvent A B C Hot water bath vs vs ss Room temperature so ss in Ice water bath so in in Group of answer choices None B C ANeel’s unknown solid 1) dissolves in hot ethanol, 2) is essentially insoluble in hexane, and 3) is insoluble in cold water, but sparingly soluble in warm water. Outline a recrystallization procedure.Propose an efficient separation and recovery scheme for a mixture of toluene, benzoic acid, andaniline. Consider that steam distillation is not an option.
- Which of the ff is not true about recrystallization? a. acetanalide recrystallized only at cold temp b. congo red stain is removed by using animal charcoal c. acetanalide can be dissolved in hot h20Acetophenone is soluble in diethyl ether, isopropanol, and n-hexane. Identify and justify the most suitable solvent for UV-Vis characterization3 Draw a flow chart to shows the strategy for separation of three compounds: Phenanthrene and 4-Aminoacetophenone and 1,4-Dibromobenzen and dissolve mixture is Diethyl ether. add NaOH (1M) and (6M) to the aqueous layer and ether layer..
- Choose the correct answer using the "like dissolves like" principle: A. anthracene dissolves in hot but not in cold benzene B. ethanol and water dissolves resorcinol C. benzoic acid does not dissolve in ethanol D. phthalic acid and benzoic acid dissolves in hot ethanol and not in hexaneneed this answer in detail. don't copy elsewhere I will downvote . 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 knownCompound A is impure and has a melting point of 90°C - 98°C. After purification, A will most likely have a melting point of: *
- 2.3 In an experiment the essential oils from herbs, were extracted with water. Explain how you will separate the oils from the water using liquid-liquid extraction. Discuss the procedure, equipment and extraction solvent choice.Look up the structures and melting points for acetanilide and salicylic acid.Predict whether the rate of cooling during a recrystallization process will have any effect on thepurity of the crystals formed.Measure the benzene and water in the unknown solution mixture using Ultraviolet–visible spectroscopy (Uv).