The glassware which is attached to the condenser to allow proper flow of distillate to the receiving flask *

Q: Write the principle behind the froth floatation process. What is the role of collectors in this…

A: Various processes are used for extraction of minerals. These minerals are very useful for…

Q: Although we will not use a Claisen adapter in our apparatus, what quality of vacuum distillation…

A: Vacuum distillation is a kind of distillation process based on the differences in the boiling points…

Q: Briefly discuss some of the operations that are typically performed on a part after it has been…

A: Solidification is the process in which transformation of a liquid to a solid takes place. In…

Q: What is the benefit of using fluted filter paper instead of not folding it?

A: “Fluted “ filter paper (LEFT) is used when we wish to separate a liquid and a solid, keeping the…

Q: When finished performing a vacuum distillation it is important to?

A: Vaccum distillation is a type of distillation allows the purification of compounds not readily…

Q: In the melting point determination, if the solud is impure, how will it affect the melting point?

A: There are basically 3 state of materials such as solid, liquid and gas. In solis atoms are tightly…

Q: For liquid water list all IMFs that have to be broken for it to mix with acetone

A: liquid water mix with acetone

Q: What is the purpose of drying the remaining solid after extraction under a heat lamp?

A: The process, in which water and other solvent is evaporated from the solid-liquid mixture to form…

Q: Make a schematic diagram of the recrystallization procedure.

A:

Q: Why is catalytic dewaxing not considered as a separation process?

A: Since Catalytic dewaxing involves breaking and making bonds, so it is usually referred to as a…

Q: Why is it important to pre-treat the solid before leaching?

A: It is important to pre-treat the solid before leaching because of Agglomeration ( this stage…

Q: The ___________ color test reagent turns purple in thepresence of heroin.

A: The color test reagent which turns purple in the presence of heroin is Marquis reagent.

Q: While recrystallizing, what should you do if you have solid particles that don’t dissolve even after…

A: Recrystallization is the process by which non volatile organic solids are purified. In this method…

Q: Post-lab Questions: does this say about the purity of your solid?

A: Answer of 1st question as per guidelines can only answer 1 if you want to ask more send them one by…

Q: 1. What is the purpose of application of steam distillation method?

A: Applying basics concept of steam distillation purification method.

Q: Which method would be most appropriate for the purification of an off-color crystalline compound? A.…

A: Introduction: Purification is the process of obtaining pure compounds by removing unwanted…

Q: Briefly describe on how peptization may occur during washing process of pure compound

A: Peptisation is the process of converting a precipitate into colliodal particles by adding an…

Q: If insoluble impurities eg. dust, tissues, filter paper etc were mixed with the sample how will…

A: Melting Points:- The melting point of a substance is defined as the temperature at which it melts.…

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: Compound A is impure and has a melting point of 93°C - 105°C. After purification, A will most likely…

A: Melting point can be defined as the temperature at which a solid melts. When the intermolecular…

Q: Melting point: 98-105 Percent yield: 60% did you successfully make pure product? Explain.

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

Q: You have completed your recrystallization process, but you did not get any crystals back after you…

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

Q: After a recrystallization experiment, the crystals were dried very well. The melting point…

A: According to the question, after a recrystallization experiment, the crystals were dried very well.…

Q: When you use a balance to weigh a reagent, you should weigh onto: -a filter paper. -the top of the…

A: Practical of any subject can help us to gain better knowledge of that particular subject specially…

Q: In most distillations, the total volume of liquid obtained (distillate + residue) is not equal to…

A: Given that in most of the distillations, the total volume of the liquid obtained is not equal to the…

Q: At what step in the recrystallization process would a colored impurity be removed?

A:

Q: Name the water purified above separating technique

A: WATER PURIFICATION The process of purifying water involves taking out unwanted chemicals, biological…

Q: In liquid, extraction, why is it necessary to turn the separatory funnel upside down and to open the…

A: Liquid-liquid extraction is also called solvent extraction is a method of separating compound from…

Q: What are some reasons why the melting point might be lower than the literature value? (Hint: Assume…

A: A pure compound generally melts over a range of temperature. If the melting point of the sample is…

Q: What is the purpose of the Claisen adapter in the reflux setup? Select one: to prevent bumping of…

A:

Q: In most distillations, the total volume of liquid obtained (distillate + residue) is not equal to…

A: In most distillations, the total volume of liquid obtained (distillate + residue) is not equal to…

Q: why should a small volume of the cold solvent be used for rinsing the pure crystal?…

A: Using a cold solvent, the impurities present in the surface of pure crystal is removed by rinsing…

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

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

Q: |CH,CH,l,Cu-Li THF solvent [+] DIBAL-H, cold THF solvent

A: These two reactions are quite efficient to provide ketone and aldehyde from their corresponding acid…

Q: Which of the three methods, (Use of Separatory Funnel, Decantation or Use of Pasteur Pipette) do you…

A: Given : Separators funnel, Decantation or use of Pasteur pipette.  Transferring large volumes of…

Q: What is the use of the glass rod in transferring liquid reagents?

A:

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

A:

Q: Briefly, discuss reflux and why it is commonly used in organic chemistry.

A: Here a term 'reflux' is given.Generally it is used in organic chemistry. We have to discuss about…

Q: It is important to pre-wet the filter paper before filtering your sample. Which statements about…

A: One important step in the procedure for filtration using filter paper is to pre-wet the filter paper…

Q: Identify one water-soluble impurity that could be removed by washing the recrystallized dulcin with…

A: Dulcin is an artificial sweetener that is nearly 200 times more sweet than sucrose.  Dulcin is…

Q: What are the common faults in the Water distiller instrument?

A: You'll need to clean the boiling chamber on a regular basis to maintain your water distiller running…

Q: Why is it required to add drying agent like sodium sulphate to the organic layer which may contain…

A: In an organic solution, there are often traces of water present because water is slightly soluble in…

Q: Explain briefly a proper technique to use burette

A: A question based on tools in analytical chemistry that is to be accomplished.

Q: In handling reagent, excess reagents should be

A: The quantity of the reagent once you taken from the reagent bottle, the excess of reagent after…

Q: 2) determine the identity of an unknown solid. Briefly explain why the experimental technique of…

A: The Temperature at which the solid state compound transform into liquid state without changing its…

Q: Why is it necessary to pulverize the sample in doing the experiment of melting point?

A: Pulverization: It is the process of grinding or crushing a solid substance in order to get a powder…

Q: Give five Synthetic Applications of Stobbe Condensation in detail?

A: The chemical reaction of an aldehyde or ketone with an ester of the succinic acid to produce…

Q: What is the purpose of the following?  a) Adding CaCl2 to the extracted organic layer in extraction…

A: CaCl2 is an anhydrous form and it is used as drying agent to absorb water.

Q: A fractional distillation of this mixture is carried out: what is the nature of the recovered…

A: Total mass of sample = 80 g Mass of water = 60 g Mass of nitric acid = 80-60 = 20 g number of moles…