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Q: Give at least three characteristics of chloroform that make it a good extracting solvent for the…
A: In nature alkaloids are found either as acidic salts or free bases.
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Q: what would be the implications if the volume reduction is skipped in the recrystallization
A: Recrystallization is a purification technique often employed in the labs. it is based on the…
Q: 4. Why do we have to wash the ether layer using 1 N HCl during the workup?
A: Answer is given below
Q: Why is it necessary to store the prepared lysates in a very low temperature?
A: necessasity to store the prepared lysates in a very low temperature.
Q: 2. Complete the extraction flow chart for separating and recovering the following compounds as they…
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Q: (c) To study the kinetics of iodination of acetone, why starch is used as an indicator just before…
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Q: How can the Eugenol content be separated from the alkaline solution?
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Q: 3. Why was DMSO used as the solvent in the experiment?
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Q: Why reflux is used in this hydrolysis of the sodium benzoate to form benzoic acid?
A: Introduction: First we will synthesize benzoic acid by protonating sodium benzoate with hydrochloric…
Q: Explain exactly what you would do when performing the following laboratoryinstructions; that is,…
A: To Find: To explain what you would do when performing the given instruction.
Q: Which analyte gives a positive result for the Molisch Test?
A:
Q: Imagine if one replaced acetic anhydride with benzoic anhydride (shown). Draw the structure of the…
A: The detail explanation of the question are given below
Q: Which ONE of the following mobile phases would give the SHORTEST retention time of prednisolone…
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Q: 2. Please explain what is A and B in the separating funnel when using NaOH to extract…
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Q: You have a sample of benzophenone which is contaminated with a small amount of benzoin. Which of the…
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Q: For extraction with ethyl-4-aminobenzoate and naphthalene using dichloromethane as the solvent, how…
A: The explanation is given below-
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Q: Could you simply explain how to alter the solubility of organic bases using extraction? How do you…
A: Here we have to explain how solubility of organic base and acid change with during extraction.
Q: Why did you wash your product with water (2x) before washing it with the sodium bicarbonate…
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Q: 1.So if you were trying to extract 15mL of an aqueous layer, why wouldn’t you want to use 45mL of…
A: A question based on analytical separations that is to be accomplished.
Q: Will Ester (Ethyl Acetate) be positive in Jones Test/Dichromate Test? Explain
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Q: What is phenolphthalein and why is it required in this experiment?
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Q: 4. To isolate the benzoic acid from the ether layer, you extracted with base. (a) An alternate…
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Q: Explain the Sodium Bisulfite Test for aldehydes (positive and negative result)
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How can we check that there is no more vanillin left in the organic layer after it has been extracted from a mixed solution of NaOH?
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- In the Separating Acids and Neutral Compounds by Solvent Extraction experiment, why was sodium sulfate added to the tert-butyl methyl ether layer ? Group of answer choices to acidify the compounds to deprotonate the compounds to precipitate the compounds to remove traces of waterGive at least three characteristics of chloroform that make it a good extracting solvent for the alkaloid.Why is it bad to put too much water as the solvent when recrystillizing benzoic acid?
- why is benzoic acid insoluble in pure water but soluble in NaOH solution?Could you simply explain how to alter the solubility of organic bases using extraction? How do you alter the solubility of organic acids using extraction?4. Why do we have to wash the ether layer using 1 N HCl during the workup?
- 2. What happens when you add hydrochloric acid to sodium carbonate? 3. What happens if we use phenolphthalein for the standardization of HCl with sodium carbonate? 4..If 80% of a desired compound is extracted into the organic phase in each step (leaving 20% in the aqueous layer), how many extractions are necessary to ensure that at least 99% of the compound has been recovered in the organic phase? 1 extraction 2 extractions 3 extractions 4 extractionsAfter separating layers in an extraction, it is necessary to “dry” the organic layer with a substance that absorbs water. Explain why this is necessary.