Q: Why was it important that you marked the origin line and component locations on the paper…
A: Pencil is made up of either graphite or lead and it does not have any interaction with the mobile…
Q: A student properly sets up a column chromatography experiment. Although the mixture is soluble in…
A: Column chromatography is used to separate or purify different materials.This colomn chromatography…
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: Why is it necessary to cover the developing chamber tightly during the development of a…
A: Given : Development of chromatogram To find: Reason for tightly packed developing chamber during…
Q: Discuss various types of paper chromatography?
A: To Find: Explain paper chromatography and it's various types. Paper chromatography is a type of…
Q: Which of the following matches is/are incorrect regarding the paper chromatography experiment? a.…
A:
Q: Describe in detail the function of column in gas chromatography system.
A: The column is the one of the important part in gas chromatograph.
Q: Why are the components in the sample separated from each other before determination in…
A: Why components of any compound is saparate in chromatography techniques.
Q: Why do we need to add sand on top of the silica in column chromatography? What could happen if we…
A: The presence of different compounds in the mixture is separated by employing the separation methods.…
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: Can acetic acid be used as the mobile phase in kool aid chromatography over isopropyl alcohol?…
A: Kool aid chromatography involves separation of red and blue dyes present in the Kool aid. The mobile…
Q: As distillation method is used to seperate a homogenous mixture, which kind of mixtures…
A: Chromatography is a technique that is used for separating the components in a mixture. Separation is…
Q: Cite problems why t
A:
Q: Can the following two molecules be seperated by column chromatography or recrystalization? Explain
A: Recrystallization is used to determine the structure based on the melting point of the crystals.…
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: The eluent is to be below the 1.5 cm line on the chromatographic paper. Describe the expected…
A: Introduction- Thin layer chromatography(TLC) is a separation technique where the compounds are…
Q: What accounts for a high
A: Chromatography is a technique used for separation and identification of the components in mixture…
Q: Define Flash Column Chromatography? Please answer at your own words
A: The phenomenon of flash column chromatography is related to the chemical analysis method. The word…
Q: Compare between open tabular column and packed columns in gas chromatography?
A: Gas chromatography is a technique which involves the sample being vaporized and then injected into…
Q: What is meant by retention time in gas chromatography. In what order will they come hexane, ethyl…
A: The process of separation of various constituent of a mixture in zone or in phases is known as…
Q: In thin-layer chromatography, what will be the result if the solvent level is higher than the sample…
A: A multiple choice question based on thin layer chromatography, which is to be accomplished.
Q: What is the other term for mobile phase in chromatography? (Eluant, Eluate, or Solvent)
A:
Q: Discuss the basic principles behind cation chromatography technique
A:
Q: The flame-ionization detector is used in gas chromatography because the eluates cannot be detected…
A: Detector is the instrument that can detect the eluate species. In gas chromatography analyte…
Q: Which of the following matches is/are incorrec regarding the paper chromatography experiment? A.…
A: In paper chromatography The mobile phase is generally the solvent also called as chromatography…
Q: a pigment in the thin layer chromatography traveled beyond or farther than the solvent front.…
A: As a pigment in the thin layer chromatography traveled beyond or farther the solvent front therefore…
Q: would column chromatography separate ketone and alcohol
A: The detailed solution of the given question is solved below. COLUMN CHROMATOGRAPHY Column…
Q: Why do we use a makeup gas for some gas chromatography detectors?
A: The method of separation of components present in the mixture is termed as chromatography.…
Q: applications
A: Let us discuss the principle of size exclusion chromatography: Here the selection of molecules is…
Q: Preparing a Thin Layer Chromatography experiment there are some common mistakes. Explain what…
A: Interpretation- To tell about all the common mistakes when we prepare a thin layer chromatography…
Q: How might the Rf values of colorless substances be determined? That is, how could the colorless…
A: we use locating agents which reacts with the substance to form colored compound
Q: the efficiency of a chromatographic column improves the measure that a.increases the height of the…
A: To determine what improves the efficiency of a chromatographic column:
Q: Can a gas chromatograph (GC) separate mixtures of sodium ethoxide and sodium benzoate? Explain your…
A: Gas chromatography: Principle of gas chromatography: Gas chromatography used to separate the gas…
Q: How to determine which is the most polar and least polar in REVERSE PHASE thin-layer chromatography?…
A: Chromatography technique is used to separate compounds from mixture of compounds.Let's discuss the…
Q: Describe two general methods for improving the resolution of two substances on a chromatographic…
A: Chromatographic column is the instrument made of plastic or glass that is used in the process of…
Q: What is the role of the moist filter paper inside the developing chamber during a Thin-Layer…
A: Thin Layer Chromatography (TLC): Thin layer chromatography is the separation technique used in…
Q: What is an evaporative-light scattering detector in chromatography?
A: An evaporative light scattering detector (ELSD) is a detector used in conjunction with…
Q: Was your column chromatography separation of the three compounds in clove oil successful? Explain…
A: g)
Q: Name two general methods for improving the resolution of two substances chromatographic column.
A: Good resolution columns provide a great separation of the components by a column chromatography.…
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: The following questions relate to the column chromatography experiment.a. Why does the fluorene…
A: To find: a. Why does the fluorene elute first from the column?b. Why was the solvent changed in the…
Q: gas chromatography
A: Solution: Gas chromatography ( generally abrivated as GC) is an analytical technique used to…
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: In thin layer chromatography what is the mobile phase?
A: Chromatography is a technique used for the separation of non-volatile liquids.
Q: Match Column A with Column B. Mobile phase is more polar than the stationary phase A. Reverse Phase…
A: Explanation is on the image. 1)-‐---A 2)-----A 3)-----B 4)-----B
Q: Comments on choice of a paper and solvent are main back bones of paper chromatography.
A: Paper Chromatography is mailny based on the choice of paper and solvent used. In this technique,…
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: 4. Why is it so important that you don't erase mistakes on the chromatography раper?
A: Given : Chromatography paper To Find: Reason for not erasing mistakes on chromatography paper…
This experiment is about column chromatography of fluorenone. Complete the table
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- Which is higher in energy? Q.) Infrared radiation of 1715 cm-1 or of 2800 cm-1?Match the chromophore with the appropriate transition Choose: only in carbonyl group, 2 saturated hydrocarbons in alkane, or carbonyl group and ethene n to p* transition: ? sigma to sigma* transition: ? p to p* transition: ?) Calculate the ΔG°rxn using the following information. 4 HNO3(g) + 5 N2H4(l) → 7 N2(g) + 12 H2O(l) ΔG°rxn = ? ΔG°f (kJ/mol) -73.5 149.3 -237.1
- Which amomg the fragments below will be dectected by mass Spectrophotometer? [CH3CH3]+ CH3CH3 •CH2CH3 [CH3CH4]- only ii i and iii only i ii and iv only iiIn each case, assign the correct configuration of R or S, 1 is highest priority, 4 is lowest priority.1. The IR frequency of C≡N¯ in fac-[IrCl3(C≡N)3] is 2200 cm-1. Estimate the IRfrequency of C≡N¯ for fac-[IrF3(C≡N)3] with an explanation.2. State TWO (2) organometallic reactions that involve the concept of d ―p bonding.
- N-propylbenzene, C6H5CH2CH3, contains C (sp3) -H and C (sp2) -H bonds. Its IR spectrum shows strong or medium absorptions at 3085, 3064, 3028, 2960, 2931 and 2873 cm ^ -1, as well as bands below 1600cm -1. Which statement is wrong? A.) Stretching of the C (sp3) -H bonds results in absorptions at lower wave numbers than the stretching of the C (sp2) -H bonds. B.) The absorptions at 2960, 2931 and 2873 cm ^ -1 are assigned to stretching of the C (sp3) -H bonds. C.) The absorptions at 3085, 3064 and 3028 cm ^ -1they are assigned to stretching of the C (sp2) -H bonds. D.) Each absorption can be assigned to the stretch mode of a particular bond in the propylbenzene molecule.Explain how IR spectroscopy could be used to distinguish between polymers I-III shown below. In youranswer, you should specify the diffrences between the spectra of the polymers that would lead tounambigiguous identifcationsCalculate the DG°rxn using the following information. 2 HNO3(aq) + NO(g) --> 3 NO2(g) + H2O(l) DG°rxn = ? DH°f (kJ/mol) -207.0 91.3 33.2 -285.8 S°(J/mol*K) 146.0 210.8 240.1 70.0
- A 1.50 g sample of coniine, the toxic extract of poison hemlock, was dissolved in 10.0mL of ethanol and placed in a sample cell with a 5.00 cm pathlength. The observedrotation at the sodium D line was +1.21°. Calculate [α]D for coniine.Determine the Ksp of the following reactions. a. NaC2H3O2 Na+ + C2H3O2- b. HBr H+ + Br c. Zn(OH)2 Zn+2 + 2HO- d. PbCl2 Pb+2 + 2Cl- e. SnSO4 Sn+2 + SO4-molecular weight of H2O is 18 but his boilling point 100C, WHY? *