Which liquid layer, top or bottom, do you expect to be the organic layer?

Q: What would a glassware assembly like this be used for? Heating a reaction under reflux conditions…

A: Fractional distillation is a process by which components in a chemical mixture are separated into…

Q: All of the following statements about preparation of spotting needles are true EXCEPT: Select an…

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Q: 100 20 8- 4000 3500 3000 2500 20ee 1500 1000 capillary fiIn betueen salt plates HAVENUMBERS…

A: Provided molecular formula=C8H8O2 3H(singlet) at 3.8ppm 2H(doublet) at 6.9ppm(aromatic region)…

Q: What is this?

A: I don't know exactly what you want to ask but I m giving you all the information regarding periodic…

Q: Describe the general process of polymer dissolution in a solvent. Other than polarity, list the…

A: Polymers: The word "poly" means many and "mers" means units. Many small molecules (monomers) join…

Q: Define cohesion

A: Cohesion or cohesive force is the property by which molecules stick together. It is attraction of…

Q: Discuss polydispersity and what do you meant by PDI?

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Q: What type of solid-liquid extraction is done when the tea leaves is boiled in water?

A: Answer. Tea leaves boiled in water undergo two separations 1. hydrophilic contents absorbed in…

Q: Grease is a complex mixture of (mostly) hydrophobiccompounds. Which part of sodium stearate, head or…

A: Hydrophobic means water repellent group, example - hydrocarbons are hydrophobic. Hydrophilic means…

Q: What is the best way to differentiate between Cohesion and Adhesion?

A: When to different type of molecules attract each other then it is known as adhesion. Whereas the…

Q: Find three examples of compounds (other than luminol) that undergo chemiluminescence upon a chemical…

A: Chemiluminescence:-    Chemiluminescence is the production of light from a chemical reaction.

Q: How are the physical properties of a polymer controlled in the vulcanization process?

A: Vulcanization or vulcanisation is a chemical process for converting natural rubber or related…

Q: 8)Why measuring melting points?

A: You have a good question

Q: Elaborate the different interfacial properties of surfactants

A: A variety of natural materials work on the surface, that is, they are easily attracted to the…

Q: How do slime layers and capsules differ in structure and functions?

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Q: .Why is slow cooling required to produce pure crystals?

A: We are to discuss why slow cooling is done to form pure crystals.

Q: Es specific conductance?

A:

Q: Define cohesion and adhesion, and how they can predict capillary action.

A: Adhesion can be defined as the sticking tendency of particles of different types of material.…

Q: how to determine which is one is organic layer and aqueous layer? Is the large part always the…

A: An easy way to find out which layer is on top is to fill the funnel with water. Wherever water goes,…

Q: Bleaching powder forms a milky solution in water. Explain.

A: When the bleaching powder is dissolve in water, the solution turns milky because the formation of…

Q: Based on boiling points, can the weakest IMF (dispersion forces) be stronger than hydrogen bonding…

A: The forces of attraction existing among the molecules of a substance that belong to any state of…

Q: what would be a micro structure of a polypropylene? also please explain why this would be the case.

A: Polypropylene A type of polypropylene is polypropylene, also known as polypropene. A thermoplastic…

Q: Why is the capillary tube placed such that the open end is above the oil level?

A: The capillary tubes are very thin in appearance. These are used to determine the melting point or…

Q: Hard water does not produce lather with soap but instead produces ___.

A: Hard water contains Ca2+ and Mg2+ ions, and presence of these ions is the reason of the hardness of…

Q: Surfactants and Wettability of Leaves How does the removal of the wax affect the contact angle…

A: The surfactant additives reduce the surface tension to improves wetting and produce a stable, finely…

Q: In microemulsion, when the surfactant is hydrophobic, the water droplets will be dispersed in the…

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Q: Which of the following ingredients of restorative wax is incorporated to affect wax consistency and…

A: The answer is a) oils. Oils can increase the fluidity of restorative wax. Oils make it less firm to…

Q: Does the conductivity increase or decrease?

A: In this reaction,  Ba(OH)2 reacts with H2SO4 to form precipitate of BaSO4  Reaction is : Ba(OH)2 +…

Q: Are Water and organic liquids two different kinds of solvents ?

A: Depending upon the electronegativity differences present in the atoms of the solvent molecules,they…

Q: Above the CMC, there are no free surfactants in solution, since all have gone into micelle…

A: In surface chemistry, the critical micelle concentration is defined as the concentration of…

Q: You are in the kitchen. You have a party later today and want to make some strawberry gelatin. Your…

A: This question is based on separation of gelatin (purified collagen) and glycerol. We already have…

Q: Always increases surface pressure (below the CMC) Results in micelles (above the CMC) Can be…

A: In colloidal and surface chemistry, the critical micelle concentration is defined as the…

Q: How does a polypropylene face mask become polymeric carbon dots?

A: Answer - polypropylene face mask  - These Disposable Face Masks are manufactured from polypropylene…

Q: Which of the following is/are TRUE about simple distillation technique? a. It is used to separate…

A: Distillation is a technique that is used to separate mixture of liquids depending upon the boiling…

Q: wHAT are polycrystalline solids.? Give any two examples

A: A solid consisting of individual grains or crystallites in which each grain has a long range ordered…

Q: Explain the meaning of malleable and ductile.

A: Malleable : It is the quality of something (mostly metals) , so that something can be shaped and…

Q: What is a polymerization reaction?

A: The repeating units of a macromolecule are known as Monomers.  Monomers combines together to form a…

Q: What is the most prominent IMFA/s present when water forms beaded droplets on a waxy surface?

A: IMFA : Intermolecular forces of attraction

Q: Which elements or groups are necessary for hydrogen bonding? Does nylon contain these elements or…

A: Intermolecular forces of attraction are forces that holds the two molecules. There are different…

Q: 4. Although we nearly always fire-polish the ends of cut glass tubing (to minimize the risk of…

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Q: Aside from London dispersion forces, which substance d interactions to be effective?

A: There are different types of forces act between the molecules:- Hydrogen bonding Dipole-dipole…

Q: Water rises in capillar tubes because A. cohesion is greater than adhesion B. adhesion is greater…

A: Capillary action can be defined as the flow of a liquid into a narrow tube. The liquid flow in…

Q: How is "hard" water made "soft"? Explain why that process works.

A: Interpretation -  To explain how "hard" water made "soft" -      Introduction -  The process by that…

Q: How

A: Dear student I have given answer to your question in the image format.