Why do we need to add sand on top of the silica in column chromatography? What could happen if we loaded the sample directly onto the silica with no sand on top?

Q: Which of the following is TRUE for a reversed phase chromatography experiment? i. Less polar…

A: In Reverse phase chromatography, mobile phase is polar and stationary phase is the non-polar…

Q: Explain in depth why you had to use ethanol and water to elute the compounds for column…

A: Concept:  Column chromatography: Column chromatography is a technique in chemistry to isolate a…

Q: What would happen if we use longer columns and select adsorbing materials with 200-400 mesh sizes…

A: Solution is given in the following steps:

Q: The identity and ratio of solvents are necessary in chromatography for achieving a good separation.…

A: if your solvent had an overly polar TLC developer then all the components of the mixture will move…

Q: This experiment is about column chromatography of fluorenone. Complete the table

A: The question is based on the concept of IR spectroscopy. We have  to identify characteristic peaks…

Q: Why do H2 and He allow more rapid linear flow rates in gas chromatography than does N2, without loss…

A: Chromatography is a analytical process of of separation of a mixture ,in which the solution is…

Q: chromatography with representative picture.

A: Molecular exclusion chromatography also called size exclusion or gel filtration chromatography . It…

Q: What is the impact of the shape of the solvent front in CE (Capillary Electrophoresis)  compare to…

A: Capillary electrophoresis (CE) is an analytical technique that separates ions based on their…

Q: Thin Layer Chromatography why the non-polar compounds move up the plate most rapidly (higher Rf…

A: TLC is most useful technique to know the extent of the reaction .And the no of compound present in…

Q: In reverse phase chromatography which analyte will elute first, most polar or least polar?

A: In reverse phase chromatography, polar solvent is used as a mobile phase.

Q: Column Chromatography) What complications would a dried-out column (solvent level is below the top…

A: column chromatography is the technique used to separate compounds of different polarity .In this…

Q: Give Four main precautions need to be considered when carrying out the following.

A: ANSWER IS :

Q: What is the advantage of a bonded stationary phase in gas chromatography?

A: In analytical chemistry, gas chromatography is an important tool for the separation and…

Q: What causes the ethanol/isopropyl alcohol to rise up in paper chromatography?

A: A mixture is a type of matter which is composed of two or more substances. These are called…

Q: Which of the following is TRUE for a reversed phase chromatography experiment? i. Less polar…

A:

Q: What accounts for a high

A: Chromatography is a technique used for separation and identification of the components in mixture…

Q: Based on the thin layer chromatography experiment what should be considered when choosing the right…

A: Thin layer chromatography is one of the conventional technique for the separation of constituents in…

Q: tabulated

A: To get: Common characteristics, advantages, and disadvantages of below:- 1) Paper chromatography…

Q: Differentiate between gel filtration and gel permeation chromatography.

A: Given : We have to tell what is the difference between gel filtration and gel permeation method.

Q: Before applying the eluent on the column, why is it important to drain the solvent to a level right…

A:

Q: What is the principle behind reverse-phase ion-pairing chromatography?

A: Reverse Phase ion chromatography use the principle of  Solute ions instead of molecules .

Q: Enlist the solvents used as stationary and mobile phases in paper chromatography and Gel Permeation…

A: The separation technique used for the separation of the components present in the mixture is termed…

Q: 1. In thin layer chromatography (TLC), why do you need to use a pencil in marking the spots, origin,…

A: 1. Marker spot is soluble in the solvent. Therefore it will move on TLC plate with solvent. 2.…

Q: i) Put the steps of a column chromatography analysis in a correct order. a. Elute the column with…

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: Explain the difference between wall-coated, support-coated, and porous-layer open tubular columns…

A: In wall coated columns the stationary liquid phase rests on capillary column which in turn consists…

Q: Is the mobile phase for your TLC and column chromatography more or less polar than the stationary…

A: Mobile phase: It is the phase that is getting movement in the column. The sample that has to be…

Q: Can acetic acid be used as the mobile phase in  kool aid chromatography over isopropyl alcohol?

A: Given Can acetic acid be used as the mobile phase in  kool aid chromatography over isopropyl alcohol

Q: What is the polarity of the compounds closest to the point of application on the filter paper when…

A: Chromatography is used to separate mixtures of substances into their components. All forms of…

Q: For qualitative analysis with gas chromatography, the retention time of a standard is compared with…

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

Q: How does increasing the polarity of the developing solvent affect the Rf of a compound on a silica…

A: TLC stands for Thin Layer Chromatography. This process is basically used for the differentiation of…

Q: You are about to purify an impure sample of naphthalene by column chromatography. What solvent…

A: Column chromatography is an analytical method used for the separation of a compound from the mixture…

Q: "Start the chromatography by adjusting the fraction collector to 130 drops per fraction (about 3…

A: It is given that for 130 drops per fraction it shows volume 3 mL That means volume of 130 drops is 3…

Q: What is the purpose of using ninhydrin and iodine in thin layer chromatography?

A:

Q: what is the advantage of TLC as compared to the column chromatography ?

A: Welcome to bartleby !

Q: Was your column chromatography separation of the three compounds in clove oil successful? Explain…

A: g)

Q: In the second paragraph you should define and describe the process of gas chromatography. In this…

A: A diluted sample in used in gas chromatography because this helps in establishing a proper…

Q: Explain how column chromatography and planar chromatography methods are performed.

A: Column chromatography: This is a type of chromatography which occurs in a glass column known as…

Q: The particle size of the silica gel influences the quality of the separation in column…

A: The column chromatography involves the separation of a single compound from the mixture of fluid.…

Q: What is stationary phase used is liquid chromatography? What compounds does it bind best and why?

A: Liquid chromatography is a separation technique on the basis of colour in which the mobile phase is…

Q: thin layer chromatography What would happen to it if you decreased the polarity of the mobile…

A: Thin Layer Chromatography is used to monitor the progress of the reaction. It is composed of the…

Q: 35. The stationary phase, as well as mobile phase, are liquid in Adsorption column chromatography…

A: Answer: Chromatography is a separation technique, in which we separate the components of a mixture…

Q: When separating compounds by column chromatography, it is generally desirable to apply your compound…

A: Column chromatography is a kind of liquid chromatography and it works just like Thin Layer…

Q: Explain how to check the purity of compund using thin layer chromatography

A:

Q: What type of materials can be used as the stationary phase for column chromatography? O Inorganic…

A:

Q: Explain why pure water or pure methanol (or acetonitrile) cannot be employed as the mobile phase in…

A: Pure water or pure methanol cannot be employed as the mobile phase in reverse-phase liquid…

Q: thin layer chromatography: What would happen to the Rf value of a compound if you increased the…

A: One of the methods of identification of the individual compounds from a mixture of compounds is TLC.…

Q: What is the main difference between reverse phase HPLC and standard ion-exchange or gel filtration…

A: The main difference between reverse phase HPLC and standard ion-exchange or gel filtration…

Q: What is a correct statement regarding straight (normal) phase silica gel chromatography of compounds…

A: Answers are explained below.