Q: What would likely happen if a hot saturated solution were filtered by vacuum filtration using a…
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Q: c) You decide to use ethanol in conjunction with another solvent to make a solvent pair. What two…
A: CRYSTALLIZATION: A process in which solid crystals are produced from other state of matter like…
Q: Why should the recrystallization solvent have a fairly low boiling point?
A:
Q: Which of the following solvent systems are not suitable for binary solvent recrystallization?
A: a) water and heptane
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Q: Imagine your original mixture had contained a component capable of sublimation, such as naphthalene.…
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Q: In the melting point determination, if the solud is impure, how will it affect the melting point?
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Q: Vaccum filtration is the major technique used in this experiment. The following step sequences are…
A: The vacuum filter may be described as the approach which is basically used to disparate the solid…
Q: Why is it important to heat the empty evaporating dish at the beginning of the lab procedure of…
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Q: Why is the final product from recrystallization isolated by vacuum filtration and not by gravity…
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Q: How might cyclohexane give a false positive when choosing a solvent for recrystallization?
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Q: If the aspirin crystals were not completely dried before the melting point was determined, what…
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Q: Post-Lab Questions: 1. What restrictions are there on what volatile liquids could be used in this…
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Q: Why is it necessary to allow enough time for your samples to dry?
A: during the organic synthesis, product may contain the impurity due the presence of the solvent
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A: Liquid-liquid extraction is also called solvent extraction is a method of separating compound from…
Q: Why would it be possible to get less than 100% recovery for a recrystallization?
A: The question is based on the concept of recrystallization. recrystallization is a purification…
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Q: How is the volume of analyte measured and transferred into the conical (Erlenmeyer) flask?
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Q: Why should the washing solvent be cold in the suction filtration step?
A: Suction filtration is the final step for separating the compound from the solution during the…
Q: Why must the spots be above the level of the development solvent in the developing chamber?
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Q: What is the purpose of refluxing the reaction mixture for 45 minutes? Why not simply boil the…
A: A question based on analytical process that is to be accomplished.
Q: One of the components of nutmeg is an organic compound, Trimiristin, A. To extract this compound…
A: One of the components of nutmeg is an organic compound, Trimiristin, A. To extract this compound…
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Q: Why is it necessary to pulverize the sample in doing the experiment of melting point?
A: Pulverization: It is the process of grinding or crushing a solid substance in order to get a powder…
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: Why is it dangerous to attempt a distillation in a completely closed system
A: Distillation : a process of separating mixture of compounds based on difference in their boiling…
Q: Under what conditions can a good separation be achieved with a simple distillation?
A: Simple distillation is a method of separating two compounds from a mixture on the basis of their…
Q: If insoluble impurities, e.g., dust, tissue, filter paper, etc., were mixed with the sample, how…
A: Insoluble impurities The term "insoluble impurities" refers to contaminants that settle or float on…
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: What do you think would happen to your recrystallization solution if you did not use a pre- heated…
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- If you did not completely dry the Erlenmeyer flask before weighing the result, how would that affect the final results? Be specific in your answer.Why should the recrystallization solvent have a fairly low boiling point?What would likely happen if a hot saturated solution were filtered by vacuum filtration using a Hirsch funnel? (Hint: The mixture will cool as it comes in contact with the Hirsch funnel.)
- How might cyclohexane give a false positive when choosing a solvent for recrystallization?What properties should ideally be possessed by a recrystallization solvent?Acetone and isopropyl alcohol are generally not suitable for use in extraction, but are frequently used as recrystallization solvents. Explain
- Diethyl ether and methylene chloride are generally not suitable for use in recrystallization, but are frequently used as extraction solvents. ExplainWith respect to the lower condenser used in an apparatus for simple or fractional distillation. Why should the lower rather than the upper nipple be used for the water inlet?Why should the bulb of the thermometer be placed below the side arm of the distilling flask?
- Vaccum filtration is the major technique used in this experiment. The following step sequences are recommended: 1) turn on vacuum 2) wet the filter paper and 3) pour the product solution into the buchner funnel. can the Vacuum be turned on in the last step instead?explainOne of the components of nutmeg is an organic compound, Trimiristin, A. To extract this compound from nutmeg why we need to choose as a solvent, ether, and not acetone?B. Is it possible to choose water as an exhaustive solvent of Trimiristin?Why is it important to heat the empty evaporating dish at the beginning of the lab procedure of percentage water in Copper II Sulfate pentahydrate