Q: does melting point determination remove impurites in crude protein?
A: Concept- Melting point is the temperature at which solid will convert into liquid. Because it is a…
Q: economical purification technique that ca n be pure material? O Distillation O Another extraction…
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Q: What is the benefit of using fluted filter paper instead of not folding it?
A: “Fluted “ filter paper (LEFT) is used when we wish to separate a liquid and a solid, keeping the…
Q: In the melting point determination, if the solud is impure, how will it affect the melting point?
A: There are basically 3 state of materials such as solid, liquid and gas. In solis atoms are tightly…
Q: A melting "point analysis is a bit of a misnomer; how so? What do we measure when doing such an…
A: Melting point analysis helps in analyzing the purity of the compound.
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A: The percentage of water in Copper (II) sulfate measured by dry crucible than only we get more…
Q: What is the effect of weighing a recrystallized organic solid which is not completely dried to the…
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Q: A colored band shows an excessive amount of tailing as it passes through the column. What can you do…
A: Given problem, A colored band shows an excessive amount of tailing as it passes through the column.
Q: Why do we know the aqueous layer is the upper layer during the wash steps?
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Q: please Answer all four parts Chemistry 1. The name of the equipment used to separate 2 immiscible…
A: 1) The name of the equipment used to separate 2 immiscible phases by extraction is separating…
Q: Why is it important to pre-treat the solid before leaching?
A: It is important to pre-treat the solid before leaching because of Agglomeration ( this stage…
Q: For the experiment of the determination of the unknown powder using mixed melting points technique,…
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Q: . After the reflux period, what substances are pre n Whu will the density of the organic phase be…
A: In organic chemistry, Reactants are mixed in a solvent media, and products are obtained. The final…
Q: Why are two solvent in extraction immiscible?
A: Solvent - - > The solvent are those substance in which the solute is dissolved to form solution.…
Q: Explain the working of fixed-bed carbon solvent recovery system.
A: An atom is the basic and fundamental unit of matter. An atom consists of electrons and the nucleus…
Q: Give at least five factors to consider when performing chromatography (paper, thin-layer, liquid,…
A: Chromatography is a technique that is used for the separation of components of a mixture. The…
Q: Why is the washing of crystals on the filter paper not as effective a process of purification as…
A: Since there are multiple questions, we will answer only the first one. If you require the answers to…
Q: Briefly discuss how to identify the unknown compound by using mixed melting point method.
A: Mixed melting point calculation is a method for the determination of the identity of the unknown…
Q: In a liquid - liquid extraction, what is preferable? Three extractions with a small volume or one…
A: Liquid-liquid extraction is also known as solvent extraction or solvent partitioning. In this…
Q: At what step in the recrystallization process would a colored impurity be removed?
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Q: In an experiment the essential oils from herbs, were extracted with water. Explain how you will…
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Q: Which of the following could DECREASE the amount of the recovered crystals in the purification by…
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Q: Describe how an emulsion could break down in case it forms in an acid-base extraction or in general.
A: Emulsion is a colloidal dispersion in which both the dispersed phase and dispersed medium are…
Q: A melting "point" analysis is a bit of a misnomer: how so? What do we measure when doing such an…
A: By the term melting point, we mean that it is a fixed point of temperature where a substance or…
Q: n paper chromatography,
A: Paper chromatography was discovered by Synge and Martin in the year 1943.
Q: 1.What is the purpose of washing the recrystallized solid with solvent during the vacuum filtration…
A: A question based on purification, which is to be accomplished.
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…
Q: Determine the Kovats retention index for all six analytes.
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Q: why should a small volume of the cold solvent be used for rinsing the pure crystal?…
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Q: Question: How to get rid of colored impurities in the recrystallization process? Explain that in…
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Q: After acid-base extraction why is it important to wash organic layer at least once with pure water?
A: A question based on quantitative analysis, which is to be accomplished.
Q: A student recrystallized some impure benzoic acid and isolated it by filtration. He scraped the…
A: Recrystallization can be defined as the process in which old arrangement of particles in the crystal…
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Q: Create a flowchart for the procedures in the determination of water hardness.
A: A question based on determining the hardness of water, which is to be accomplished.
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Q: What roles do solvent, density and polarity play in liquid/liquid extraction
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Q: What are the benefits of using slightly more solvent than necessary when dissoving a compound for a…
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Q: What type of chromatogtaphy (RPLC, NPLC, HILIC, SEC, IEX) could be used for analyzing monosodium…
A: The answer is attached below-
Q: The following conditions may not cause tailing EXCEPT a. Thick filter paper as the stationary phase…
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Q: Coarse Dispersion What will be the results after you reconstitued a cefixime 60 ml a powder for…
A: A question based on colloidal solution, which is to be accomplished.
Q: a) What is capillary electrophoresis used for? b) Describe electrophoresis. c) Describe…
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Q: for benzoic acid: a.) If a benzoic acid sample had colored impurities, the solvent to choose would…
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- In which case you would used a mic solvent recrystallization? Explain, give an exampleAt what step in the recrystallization process would a colored impurity be removed?An overachieving student determines that their neutral liquid unknown contains impurities. Suggest at least one method that could be used to further purify the liquid compound.
- After acid-base extraction why is it important to wash organic layer at least once with pure water?Describe how an emulsion could break down in case it forms in an acid-base extraction or in general.Acetone and isopropyl alcohol are generally not suitable for use in extraction, but are frequently used as recrystallization solvents. Explain
- Briefly discuss how to identify the unknown compound by using mixed melting point method.Is recrystallization a good method for purifying any product?Which of the following could result in a loss in yield in a mixed solvent recrystallization? i. Use of fluted filter paper in hot filtration ii. No heated solvent in the receiving flask iii.Rapid cooling iv. Both ii and iii