Briefly explain the purpose of each item in the distillation set-up  a. Boiling chips –  b. DCM – c. Petroleum jelly –

Q: How to determine the difference between primary , secondary and tertiary alcohol in the laboratory

A:

Q: What is the working principle of Water distiller?

A: Water distillers are mainly used for removing most of micro organisms and organic chemicals from…

Q: b) What is the difference between the MGS and EGS? Explain what is the main role of Trichlorsilane…

A: In this question, we have to find out the correct answer of given problem by the help of principles…

Q: Will recrystallization work as a purification technique on all samples? If the sample contained more…

A: Recrystallization techniques works only on the solid samples which is used to purify them. This…

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: How to increase thw yield of steam distillation?

A: We have to write how to increase the yield of steam distillation.

Q: A) the possible methods to purify cyclohexene from cyclohexanol and other materials produced in the…

A: Purification of Cyclohexene from cyclohexanol  can be done via these following ways -  First one is…

Q: which of the following statements regarding purification by recrystallization is false? i.…

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

Q: Is recrystallization a good method for purifying any product?

A:

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: 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 is the purpose of adding cold alcohol into the banana liquid? What reagent is used in research…

A: The cold alchol added helps to precipitate (DNA undissolves when comes in contact with cold alchol)…

Q: What are common solvents used in separations? Draw their structures and rank their polarities.…

A:

Q: Is distillation a good method for separating a mixture of heptane and 1-propanol?  Why or why not?

A: Distillation is separation technique used for separation  of liquids.

Q: When choosing a recrystallization solvent, what properties must be considered? a. Its boiling…

A: The solvent should boil in the range 50–120°C. Impurities should either be insoluble in the hot…

Q: Measure 55 mL of 40% ethanol  Place 50 mL of ethanol in your distilling flask taking care that no…

A: The separation of mixtures of two liquids with different boiling points, such as alcohol and water…

Q: 4. Discuss how to use a desiccator. When should a desiccant be replaced? Give 2 examples of…

A: Desiccator is an apparatus that is used to store the weighing bottles or weighing glass wears that…

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

A: False

Q: What is the function of the warm-water-in in a distillation set-up?

A: Distillation is the process of using heating and cooling to separate and purify the components of a…

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 are hexane, cyclohexane, and toluene soluble in ligroin?

A: Ligroin is a volatile organic solvent obtained from petroleum.  "Like dissolves like" is the thumb…

Q: What type of distillation set up is in the picture? A Simple distillation Steam distillation

A: Given distillation set up,

Q: Where should you dispose a mixture of tetrachloromethane and water? (A) Alkali waste B…

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

Q: Which type of distillation is suitable for preparing “oils"?

A:

Q: Some solids, in particular many amino acids, decompose upon melting. These compounds are often…

A: As the compounds decompose after heating up to a certain temperature, the molecules formed by…

Q: The samples you collected during distillation were kept in a fridge for a week before being analyzed…

A:

Q: What is the purpose of including a melting point in a procedure? A) As a method of purification - We…

A: Answer (A) Option is correct.

Q: what is the role of methanol for extracting chlorophyll?   What molecular force holds your…

A: Chlorophyll is a fat soluble hydrophobic compound. Methanol is hydrophobic solvent. Methanol is a…

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: What is the purpose of washing the crude product with petroleum ether before filtration?

A:

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: 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: Fill in the blanks: Safe distillation is promoted by using that prevent bumping during heating. It…

A: Distillation is a process of purification where liquid is converted to vapour and the vapours are…

Q: What is different about steam distillation

A:

Q: Why is water not used as a solvent in extraction of nuts

A: A question based on extraction of nuts, which is to be accomplished.

Q: Why do impure chemicals have lowering melting points? Can recrystallization be used to purify all…

A:

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: Describe the technique of Re-crystallization?

A: Recrystallization is often used in organic chemistry for the purification of the synthesized…

Q: Fractional distillation of Crude oil.

A: A question about fractional distillation, which is to be accomplished.

Q: (extraction, reactive extraction, recrystallization). Write a few sentences for each technique…

A: Please find your solution below : Isolation of organic compound is a process in which individual…

Q: Is water always used in steam distillation?

A: Organic compounds can be defined as compounds that contain hydrogen and carbon atoms.

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: What is the process of seeding, as it applies to recrystallisation? What purpose does it serve?

A: The process of seeding is defined as the addition of crystal of pure substance into saturated…

Q: Propose how the components of a mixture containing benzene, toluene, and water can be separated.

A: The given mixture is Benzene, toluene and water. Benzene and toluene are organic compound while…

Q: Explain what would happen in a distillation if a student did not add any boiling stones to the…

A: If u will not add boiling stone in your distillation flask the solution starts bumping resulting…

Micelles and Biological Membrane

Micelles are the type of lipid molecules that organize themselves in spherical shape in aqueous solutions. The production of the micelle is a reply to the amphipathic behavior of fatty acids. It means that they consist of both hydrophobic regions and hydrophilic regions. In micelles, polar head groups (hydrophilic groups) produce an outer layer associated with water whereas nonpolar tails (hydrophobic groups) are organized in the interior.