Write the dispersion medium and dispersed phase in milk.

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: In a warm environment, which restorative wax is recommended for surface restoration? a. opaque b.…

A: In a warm environment, which restorative wax is recommended for surface restoration?

Q: When checking the melting point of your impure sample, what temperature should you set as the…

A: In the event that the inexact temperature at which your sample should melt is known, the sample can…

Q: 5. Discuss how melting points of the impure sample and recrystallized sample could have been used to…

A: Melting point is the temperature at which there is a change from the solid to the liquid state i.e.…

Q: How does the volume of a solvent affect the purity of the material in recrystallization?

A:

Q: Describe chromatography. Include the following words: Physical change, Intermolecular Forces,…

A: physical change: A change in the physical condition and  properties of substance that is change.…

Q: explain the mechanism of cleansing action of soap.

A: Soap consists of hydrocarbon tail and head in which tail is hydrophobic (water repelling) and head…

Q: If the melting point range obtained from the unknown sample is 121-122 degrees Celsius, can we say…

A: Please find your solution below : Melting point of a substance is defined as a temperature at which…

Q: What is the difference between oil/water (O/W) type and water/oil (W/O) type emulsions? Give an…

A: Emulsions are the mixtures of 2 or more than 2 liquids that are generally immiscible. It is a type…

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

A:

Q: If you are performing a solvent extraction using 1M NaHCO3 and Dichloromethane (Density = 1.325…

A: Solvent extraction is a process of separating the dissolved compound from one solvent by using…

Q: Why is recrystallization not applicable to samples which contain large amount of impurities?

A:

Q: What are the dispersed phase and dispersion medium in milk?

A: Dispersed Phase: The phase or particles which are present in the form of colloidal particles is…

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: When isolating a solid compound after recrystallization, which is the appropriate technique to use,…

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

Q: Is the separation 100% complete after evaporation process? Explain.

A: Evaporation is a process by which a compound changes its phase from liquid state to gaseous state…

Q: 25. In the paper chromatography experiment on food dyes, salt water was used as the A. mobile phase…

A: Paper chromatography is a method used to separate colored substances or chemicals.

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

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

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 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

Q: If a small amount of impurity is present in a sample, what will be its effect on the melting point…

A: Types of impurities that can be present in the sample: Miscible impurity: Such impurity is soluble…

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: Write the dispersed phase and dispersion medium of paints.

A: Colloidal solution contains two phase: dispersed phase and dispersion medium.

Q: Why should the burette not be completely emptied when dispensing?

A: Since, burette is used for titration to determine strength of a solution.  We can take appropriate…

Q: In distillation 1. What is the reason for discouraging the formation of bubbles inside the…

A: Distillation is a method of separating components present in a liquid mixture based on difference in…

Q: molecules are

A:

Q: In recrystallization, fluted filter paper is used instead of a regular cone because it minimizes its…

A: In recrystallization, an impure solid compound is mixed with hot solvent to form a saturated…

Q: How to know if substances (cinnamic acid and urea) are pure based on their melting range?

A: The melting point of a pure substance is always higher and has a smaller range than the melting…

Q: Write the Separation of heavy metals using solvent extraction technique.

A: Solvent extraction is an analytical method in which metals are separated based on their solubility…

Q: Ter solution differ from an unbuffered solution

A:

Q: Describe the errors which may cause an observed melting point range of a PURE sample to be: higher…

A: Ans 1)  If you used very large a sample size and  Using uncalibrated thermometer .  Packing a…

Q: What physical property determines which solvent sinks to the bottom when performing a liquid-liquid…

A: A separating funnel is used for carrying out liquid liquid extractions. When two liquids are shaken…

Q: What are the different phase changes involved in the purification using sublimation experiment?

A: Sublimation is a process in which solid is directly change into gaseous without changing in liquid…

Q: Is the sebacoyl chloride solution more or less dense than the hexamethylenediamine solution? More…

A: Sebacoyl chloride solution remains at the top of hexamethylenediamine solution.

Q: Which is the most appropriate way to dispense liquid using a dropper (vertical, 45° angle, or…

A: Dropper is a device used to transfer small quantities of liquids.

Q: During melting point determination, what does melting point range means? How will you know if the…

A: The melting point of a solid substance is the temperature at which it changes from solid state to…

Q: What is different about steam distillation

A:

Q: What roles do solvent, density and polarity play in liquid/liquid extraction

A: i. Solvent =  In liquid - liquid extraction, the solvent which is needed to be extracted should not…

Q: To identify 1° alcohol from 2° alcohol and 2° alcohol from 3° alcohol giving Immiscible layer as the…

A:

Q: What is the difference between gel filtration and gel permeation?

A: Gel Filtration Chromatography is a technique which use to sperate out the molecules by there the…

Q: BRIEFLY explain why steam distillation can be used to purify or isolate temperature-sensitive…

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

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: Show the differance between Soaps and Micelles and Detergents:

A: Soaps are biodegdrable and form white precipitate with hard water that is called as scum whereas…

Q: Describe the procedure of how to collect and dry your newly recrystallized compound.

A: Recrystallization is the method that is used to purify the organic compounds. It involves the…