Why is it bad to put too much water as the solvent when recrystillizing benzoic acid?

Q: In caffeine recrystallization, explain how recrystallization was performed and how pure caffeine was…

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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…

Q: methyl alcohol and ethyl alcohol are poor extraction solvent. why?

A: Liquid–liquid extraction, also known as solvent extraction and partitioning, is a method to separate…

Q: briefly explain how a soap can be used to increase the solubility of methylamine in water

A: Soap is the sodium salt of fatty acid. Soap is produced by the saponification (basic hydrolysis) of…

Q: 4. Why do we have to wash the ether layer using 1 N HCl during the workup?

A: Answer is given below

Q: What is the melting point of crude and pure acetanilide?

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Q: Why ethylene glycol is not categorized under glycol liquid desiccant?

A: There are two types of Glycol.They are  i-Ethylene Glycol  ii-Propylene Glycol

Q: What is the procedure of ethanol distillation from yeast sugar wash?

A: Ethanol is manufactured from molasses by the fermentation process. Fermentation is the process of…

Q: Why is methanol chosen as the solvent for recrystallization? A. Because it can easily be boiled…

A: Solvent used in recrystallization should have below properties: At high temperatures, it should be…

Q: Comparison and Explanation Melting point: Magnesium chloride and oxalic acid Boiling point: Acetic…

A: Melting point is the temperature at which solid and liquid phases coexist in equilibrium. Boiling…

Q: why ethyl acetate is immiscible with water?

A: A solution consists of solute and solvent or a solution is a mixture of two or more components.…

Q: How will you purify benzoic acid that is contaminated with methyl orange? Give the step-by-step…

A: Both benzoic acid and methyl orange are sparingly soluble in water. But when we add strong base like…

Q: After dissolving our impure naphthalene in Methanol, the solution looks red. What could have…

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Q: Why is benzoic acid insoluble in sulfuric acid? Explain the concept

A: Given: Benzoic acid is insoluble in sulfuric acid.

Q: Why ethanol is added to the residue in the distillation flask Why is this important

A: liquid ethanol can be separated from a mixture of ethanol and water by fractional distillation. This…

Q: Explain briefly why washing the soap product with water is a very important step before using the…

A: Soaps are made from natural ingredients, such as plant oils (coconut, vegetable, palm, pine) or…

Q: Some de-icing compositions include dyes or colored compounds called indicators. Why?

A: The process of removing snow or ice from the surfaces is called de-icing. This can be done through…

Q: What specific impurities are removed by the ethanol and acetic acid in ethanol washes?  Explain

A: Ethanol washes means washing the end product with ethanol. This procedure removes the impurities…

Q: What property is used to determinyif an organic solvent is above or below the aqueous layer when…

A: In the process of extraction, it is important to know whether the aqueous layer is below or above…

Q: What are the sources of impurities of compounds? What is the different between benzyl alcohol and…

A: 1) sources of impurities       reagents, solvents, raw materials ,method of process, storage…

Q: Diagram of Apparatus Draw or paste in a diagram of a simple distillation with a heating mantle, NOT…

A: Distillation is the process of separating components of a mixture based on different boiling points.…

Q: Filter paper should be moisten with water in preparation of spirit

A: False

Q: To purify benzil crystals and get rid of any leftover traces of benzoin, what would be the best…

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Q: Determine which solvent is best for distinguishing the following pairs of chemicals based on their…

A: and Both of the compounds are capable of forming hydrogen bonds with water, hence have appreciably…

Q: Why would concentrated HBr be an inappropriate catalyst for the dehydration of alcohols?

A: Alcohols upon dehydration to give alkenes  It is an example for elimination reactions Generally…

Q: Why is aniline soluble in aqueous HCl?

A: The solubility of a compound depends on their polar or non-polar nature. It follows a simple rule…

Q: select

A: This question is related to recrystallization.

Q: What properties are necessary and desirable for a solvent in order that it is well suited for…

A: A number of solvents can be used for the recrystallization of an organic compound, which may be a…

Q: Why must some organic reactions occur in the absence of water? Describe how you can remove residual…

A: Since water is a polar solvent so it can interfere with the reacting species, which is unwanted  and…

Q: why is distillation an ideal choice to purify cyclohexene from cyclohexanol instead of other…

A: Distillation is used to separate a mixture when the boiling point difference between the…

Q: Why should the sodium carbonate be dried prior to standardization? Answer briefly and own words

A: sodium carbonate is a common primery standard used in the titration of acids vs bases. sodium…

Q: Why is caffeine more soluble in Dichloromethane than in water?

A: Solubility rule is that like dissolves like. Polar molecule dissolved in polar solvent.

Q: Are all organic solvents aprotic?

A: Aprotic means that the substance does not  possess any O-H or N-H bond in its structure.Basically it…

Q: If we are recrystallizing a PURE compound, what will happen to the sample if we cool the solution…

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Q: Besides water, what is being removed from the ether layer when it is washed with a saturated NaCl…

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Q: Fill in the blanks: The ratio of the solubilities of an extract in two different solvents during…

A: This can be solved by using Nernst distribution law.

Q: surface contamination after cooling the acetanilide in the recrystallization experiment

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Q: Why is benzoic acid more soluble in ethanol than in water?

A: ability to dissolve solid, liquid and gases in solvent is known as Solubilty.

Q: How is lactic acid purified by distillation? Simple or Fractional Distillation?

A: Distillation is the process of separating the components or substances from a liquid mixture by…

Q: What is different about steam distillation

A:

Q: How do you obtain napthalene,napthol and benzoic acid from a sample using recrystallization

A: All three compounds dissolve in organic solvents (like dichloromethane or diethyl ether) better than…

Q: why is there are bubbles formed when aniline is added to nitrous acid?

A: The chemical formula of aniline is C6H5NH2 and that of nitrous acid is HNO2.

Q: I. Moisture and heat labile reagents are preferred for dry granulations. II. Dry granulation…

A: 2) I. Blaud's pills are used medication for patients sufferingfrom anemia. I. Ferrous carbonate is…

Q: Why is benzophenone soluble in methanol and biphenyl insoluble in methanol?

A: Given that benzophenone is soluble in methanol and biphenyl is insoluble in methanol.Benzophenone is…

Q: Select the best solvent (only one) for the recrystallization of each compound (benzoic acid,…

A: Interpretation-  To select the best solvent (only one) for the recrystallization of each compound…