Q: What is the purpose of the wash with water using separatory finnel? Bicarbonate?
A: The aqueous solution of the sodium bicarbonate having formula NaHCO3 and sodium carbonate having…
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A: Essential oils are created using two main methods of extraction – distillation and expression.…
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Q: What is the reason behind the portion-by-portion evaporation of DCM in the extraction of eugenol?
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Q: Suggest another way (besides vacuum filtration) to purify the partially oxidized benzaldehyde. 3.
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Q: Why is steam distillation and not fraction distillation used to extract limonene from citrus peels.
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Q: Why is it not necessary to dry the Erlenmeyer flask between each trial?
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Q: Why should you use a minimum amount of water to rinse the conical vial while transferring the…
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Q: Regarding an organic chemistry laboratory experiment: a. Why is it necessary to isolate eugenol from…
A: Eugenol, is an essential oil, that is extracted from cloves.
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A: Formula used w = W KD×VKD×V+ vn Where KD = distribution coefficient V = Volume of water = 100 cm3 =…
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Q: Explain the function of using dichloromethane after the steam extraction of Eugenol. Also discuss if…
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Q: Why does the eugenol move from the water layer to the dichloromethane layer during extraction?
A: In separation process, aqueous and organic layer gets separated.
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A: Given that the cyclohexanone extraction is done in three steps instead of one step.
Q: In this experiment, 1.0 mL of saturated sodium chloride is used to rinse the Hickman head after the…
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Q: What is the purpose of grinding the cloves before the steam distillation? Isolation of eugenol from…
A: Eugenol is separated using steam distillation and dichloromethane as organic solvent .
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A: Given information: Separating t-butyl chloride from the reaction mixture.
Q: caffeine
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Q: What is the purpose of the filter paper moistened with ammoniacal silver nitrate solution in the…
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Q: Why is eugenol steam-distilled rather than purified by simple distillation?
A: Eugenol, also called clove oil, is an aromatic oil extracted from cloves that is used widely as a…
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A: Answer (A) Option is correct.
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Q: Should you use distilled or deionized water for each of the following processes? a. If you’re…
A: Here we have two types of water i.e. tap faucet water and deionised water(double distilled).
Q: 3. Why is it unwise to allow the solution of the Grignard reagent to remain exposed to air for an…
A: The reactive nature of Grignard’s reagent does not allow the Grignard reagent to stay in nature and…
Q: Why do you think there is a need to soak the crucible with 10% nitric acid for preparation in dry…
A: An analytical technique in which the sample's composition is being evaluated and the sample remains…
Q: What is the principle involved on how a simple distillation can isolate the eugenol from cloves?
A: Principle: The principle of steam distillation is based on the fact that two immiscible liquids will…
Q: Write the principle behind reflux technique. 2)The role of recrystallization of dibenzalacetone
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Q: Why does scratching the inside of the flask with a glass stirring rod initiate crystallization?
A: The process by which solidification of molecules or atoms into a highly structured form called…
Q: Under what conditions can a good separation be achieved with a simple distillation?
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Q: When steam distillation is not recommended? What is the theory of steam distillation technique?
A: There are various solutions which contains a lot of solvents which needs to be separated out from…
Q: 1. Why does the solid need to be finely ground and then tightly packed in a melting point capillary…
A: The temperature at which the solid melts and starts converting into liquid is called as melting…
Q: Why is 95% alcohol a good solvent for extraction?
A: The substance which is present in lesser amount is termed as solute. The substance which is present…
What is the purpose of grinding the cloves before the steam distillation?
The isolation of eugenol from cloves
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- Why does the eugenol move from the water layer to the dichloromethane layer during extraction?What are emulsions? Why do they form during extractions? How is their formation minimized?Why should you use a minimum amount of water to rinse the conical vial while transferring the purified acetaminophen to the Hirsch funnel?
- Calculate the weight of nitrobenzene that codistills (bp 99°C) with each gram of water during a steam distillation. You may need the data given.What kind of crystals would have more surface contamination after cooling the acetanilide in the recrystallization experiment?What is the reason behind the portion-by-portion evaporation of DCM in the extraction of eugenol?
- What is the purpose of the wash with water using separatory finnel? Bicarbonate?In this experiment, 1.0 mL of saturated sodium chloride is used to rinse the Hickman head after the initial distillation. Why is saturated sodium chloride, rather than pure water, used for this procedure and the subsequent washing of the organic layer?Why is eugenol steam-distilled rather than purified by simple distillation?
- Why is methanol chosen as the solvent for recrystallization? What would happen if the student uses dichloromethane instead?Based on the readings and lecture on emulsions, and the procedures for this lab answer the following question. What is the dispersed phase in the simple vinaigrette? Air Oil Water EggIdentify one water-soluble impurity that could be removed by washing the recrystallized dulcin with cold water.