2. Is it possible to purify a compound by recrystallization using a mixture of solvents? Why or why not?

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

A:

Q: Q1. Give three criteria for a good recrystallization solvent.

A: "Since you have asked multiple questions, I am solving the first one for you. If you need help with…

Q: What should you do and not do when mixing the organic and aqueous phases during a liquid extraction?…

A: The amount of a substance that moves into the solvent depends on the interaction between substance…

Q: 4. Why is important to allow the saturated solution to cool down slowly during the…

A: Recrystallization is purification method. Solid substances are purified using Recrystallization…

Q: Why is water not a good recrystallization solvent for sodium benzoate? a. Sodium benzoate is…

A: Water is not a good recrystallization solvent for sodium benzoate.

Q: 8. Why should you boil the sample solution right before reaching the end point?

A:

Q: Can you recrystallize these two components with 95% ethanol? Is it possible?   If so, make a flow…

A: A question based on introduction to organic chemistry that is to be accomplished.

Q: 10. Describe how you can decide whether your recrystallized trphenylmethanol is pure or not ?

A: Triphenylmethanol is an organic white crystalline compound. It is insoluble in water and petroleum…

Q: Which of the following spot is the most soluble in water?

A: Which of the following spot is the most soluble in water?

Q: Add an excess of methanol to 8.0g of benzoic acid followed by a few drops of concentrated sulfuric…

A: Benzoic acid on reaction with methanol in presence of catalytic amount of H+ produces methyl…

Q: How might cyclohexane give a false positive when choosing a solvent for recrystallization?

A: Melting point of cyclohexane = 6.47 oC   Cyclohexane is not soluble in solvent at high temperature,…

Q: What is an effective way of preventing irregular ebullition or bumping of the mixture during…

A: The question is based on the concept of experimental chemistry. we have to suggest an effective way…

Q: You need to purify 0.8 grams of an impure sample of trans-cinnamic acid. After the purification is…

A: In the recrystallisation process of trans cinnamic Acid, A mixed solvent ethanol and water have to…

Q: We perform a 1.0 mL 2-methyl-2-butanol alcohol dehydration by simple distillation also using H2SO4.…

A: A question based on analytical separations that is to be accomplished.

Q: What impurity was likely removed during the recrystallization necessary ?

A: Recrystallization is the most important method of purifying nonvolatile organic solids.…

Q: Assume there is confusion as to the nature of a liquid that is being distilled off from 1,4…

A:

Q: What are the criteria for a good recrystallization solvent?

A: Recrystallization refers to the phenomenon where solid compounds are purified. In the…

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

A: A question based on purification, which is to be accomplished.

Q: What are emulsions? Why do they form during extractions? How is their formation minimized?

A: Emulsion is defined as the dispersion of one liquid in another liquid which are not miscible or it…

Q: Why is important to allow the saturated solution to cool down slowly during the recrystallization?

A: Recrystallization is most useful purification technique. It is used for purify solid compounds.

Q: Five grams of Compound A is dissolved in 100 mL of water. The distribution coefficient for Compound…

A: Let x g of Compound A will be in the hexanes  (5−x) g of compound A will remain in water. Given, KD…

Q: What effect would the incomplete drying of a sample (e.g., the incomplete removal of a…

A: The melting point will be lowered and broadened.

Q: Why is the collection done through a 10% Na,CO, solution? Remove traces of acids or neutralizes the…

A: The alcohol functional group in a molecule is observed by the presence of -OH group. For example,…

Q: . One gram of caffeine dissolves in 55 mL of water, 7 mL of Dichloromethane, 530 mL of diethyl…

A: volume of water = 55 mL/1000 = 0.055 L volume of dichloromethane = 7 ml = 0.007 L volume of…

Q: How would you recrystallize a mixture of Benzoic acid and 2-Naphthol? Discuss the choice of solvent…

A:

Q: What is the purpose of the sodium sulfate? Why did you rinse the sodium sulfate with an additional…

A: Sodium sulphate is used in organic synthesis to remove water via formation of sodium sulphate…

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: what is the freezing method on separating alcohol to the mixture and its step by step process

A: Separating Alcohol Through Freezing: Start with a liquid that is 5%-15% alcohol. You'll need a…

Q: We want to extract terpenoids from an aqueous sample by continuous liquid-liquid extraction. Which…

A: The solution is given below -

Q: for effective  purification by recrystalization while avoiding performing a hot gravity filtration,…

A: Recrystallization is used to purify a sample.

Q: 2. During heating, some solution of NaCl spattered out of the evaporating dish. How would this…

A: The question is based on the concept of experimental chemistry. We have to evaluate the impact of…

Q: 2. What two techniques are used to facilitate the aspirin crystallization? 3. Why is it necessary to…

A: Since your question has multiple parts, we will solve first three parts for you. If you want…

Q: Why is it important to cool slowly during recrystallization

A: recrystallization is a process in which we dissolve an impure crystal in a solvent at high…

Q: 12 g of compound “Y” dissolves in 10 ml of acetone at 25 0C and 0.85 g of the same compound…

A: The necessary condition to recrystallize any impure sample is that the solubility should be…

Q: Why is benzoic acid used as a solvent when making up the glucose stock standard solution?

A: Benzoic acid s an aromatic carboxylic acid.  This is a crystalline colourless solid. Benzoic acid is…

Q: Assume that you are provided with an 18 cm fractionating column having an HETP of 6 cm to distill a…

A: To determine the composition of first drop of distillate

Q: While performing a crystallization, you obtain a light tan solution after dissolving your crude…

A: It is observed that a light tan solution is obtained and because of this, it is better to filter it…

Q: You are tasked with performing a recrystallization. You have 3 potential solvents to use, but you…

A: The solution is given below -

Q: What is the reason for using as little ethanol as possible to dissolve the crude product (aspirin)…

A: Recrystallization is a process which is used to purify the compounds. The principle behind…

Q: Describe the characteristics that a crystal obtained through recrystallization must have, the final…

A: Recrystallization is basically a purification technique. Recrystallization is a process in which the…

Q: Explain through a laboratory experiment: How is recrystallization of Acetone possible? Can it or how…

A: Recrystallization of acetone is almost not possible.

Q: In recrystallization, crystals gathered are washed with cold solvent. What would its effect on…

A: When a reaction is carried out, the product obtained is mostly accompanied by some other substance…

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: What are the benefits of using slightly more solvent than necessary when dissoving a compound for a…

A: Recrystallization is a process of purifying a solute when it is soluble in the solvent only on…

Q: When conducting a recrystallization what should generally be true when comparing the compounds…

A: Recrystallization is an experimental technique of separating pure compound from the solution…

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: 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…