How can you prepare a set of solutions with concentrations spanning several orders of magnitudes? A. crystallization B. dehydration C. serial dilution D. high-performance liquid chromatography
Q: Column Chromatography works by the same principle as TLC however the silica gel is not plated on a…
A: Note : Compound A is more soluble in mobile phase. Therefore less polar and having higher Rf.…
Q: Which type of chromatography is paper chromatography? a. Liquid-liquid chromatography b.…
A: Chromatography is a technique used for separating components in a mixture. Paper chromatography is a…
Q: Why is a suppressor used in ion chromatography?
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A: Given that, Thin-layer chromatography is a type of normal-phase chromatography or a type of…
Q: Explain
A: In TLC analysis we put solvent below the sample spot .
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Q: Which statements are true for molecular exclusion chromatography?I Molecular exclusion…
A: ✓As the name ,Size-exclusion chromatography, also known as molecular sieve chromatography, is a…
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A: Ion-exchange chromatography is an important analytical technique which is based on the attraction…
Q: Why is filtration of a gelatinous precipitate done while the solution is still hot?
A: The filtration of a gelatinous precipitate done while the solution is still hot.
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Q: The overarching principle of paper chromatography is separation by A polarity B density titration…
A: The principle of paper chromatography is partition and this partition is occur due to two difference…
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Q: spotting paper chromatography samples above the solvent level ______________________________________…
A:
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: How can you use ion-exchange chromatography to de-ionize water?
A: How can you use ion-exchange chromatography to de-ionize water?
Q: How will the following changes affect the retention time of the solute in supercritical fluid…
A: Supercritical fluid chromatography (SFC) is an analytic techniques used for separation similar to…
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A: Introduction: Purification is the process of obtaining pure compounds by removing unwanted…
Q: 2. What are mobile and Stationary phases in a chromatogram? Site their nature.
A: The solution is given below -
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A: Answer - According to the question - (TIC) - A TIC (Total Ion Chromatogram) is a chromatogram…
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A: Reversed phase chromatography have long chain alkyl chains which are non polar in nature .
Q: Discuss briefly the various operations involved in paper chromatography.
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Q: Suggest two possible applications for paper chromatography other than the separation of dyes or the…
A: Paper chromatography is a technique used for separation of components of a mixture. In paper…
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A: "Since you have asked multiple questions, we will solve the first question for you. If you want any…
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A: To identify: The techniques which use the difference in boiling point for separation.
Q: Preparing a Thin Layer Chromatography experiment there are some common mistakes. Explain what…
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Q: What properties should the stationary-phase liquid for gas chromatography possess?
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Q: Match column A with column B. v Mobile phase: NON-POLAR Stationary phase: NON-POLAR v mobile phase -…
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A: Chromatography is used to separate mixtures of substances into their components. All forms of…
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A: The correct answer about chromatography is given below
Q: by
A: Chromatography is basically that technique which allows the separation, identification, and…
Q: If there is a mixture of more volatile and less volatile substances and are to be separated through…
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Q: 4) If the classification of the chromatography run is a reverse-phase chromatography, discuss the…
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Q: Please choose an appropriate technique(s) to separate following compounds (it can be one, more than…
A: We can see the difference in boiling point of both that is the Phenol and Toluene.
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A: The order of elution of different components in a mixture in a chromatographic column, is determined…
Q: 5. Column Chromatography works by the same principle as TLC however the silica gel is not plated on…
A: To answer question 5.
Q: 4. a. What physical property of a compound predicts whether that compound travels slowly or rapidly…
A: Gas chromatography is an analytical method to separate the components of a mixture in a sample by…
Q: gas chromatography
A: Solution: Gas chromatography ( generally abrivated as GC) is an analytical technique used to…
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Q: Why is thin layer chromatography a convenient way to anayize triphenylmethanol
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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
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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…
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- The following tests are used for control of organic impurities in organic medicinal substances, except ... O a. Thin Layer Chromatography O b. Viscosity O c. pH of solution O d. SolubilityHow can you prepare a set of solutions with concentrations spanning several orders of magnitudes? a. serial dilution b. crystallization c. dehydration d. high-performance liquid chromatographyWhich technique is based on the stronger attractionsome components have for the stationary phasecompared to the mobile phase? A. filtration D. chromatographyB. distillation E. sublimationC. crystallization
- Althea extracted 2g of pure dry salt frame 6g of rock salt. The mass of the salt obtained is less than the mass of rock salt because the rock was removed by ______?a dissolvingb. distillationc. evaporationd. decantation5. A mixture of different colored inks can be separate using ______?a. chromatographyb. distillationc. evaporationd. distillation6. what is one property of a suspension that is different from that of a solution or colloid?a. the particles of a suspension will settle down upon long standing.b. the particles of a suspension reflect light.c. A suspension is always clear.d. A suspension is colorless.3. What is particulate gravimetry? When do we use this technique? 4. What are the conditions for a successful gravimetric analysis. 5. Define nucleation. What conditions are important for this stage.4.Discussed the Purposed of the Golden rules in the practice of Forensic Chrmistry.
- 6. The following are disadvantages of using filter paper in gravimetry, which is not included? a. React with strong acids and strong bases b. Break under mild stress c. Ashless filter paper is used d. Prevent use of suction 7. Which of the following can not be used to minimize supersaturation and thus used to crystalline properties? а. Нeating b. Using dilute solutions c. Rapid addition of the precipitating agent d. Air controlChemistry 1. In anion exchange chromatography, the stationary phase negatively charged. a. True b. False 2. Give two (2) examples of a planar chromatographic technique:.Define , describe, or illustrate the following: a. HETPb. Capacity factorc.. Selectivity factord. Chromatograme. Elution
- The following data give the recovery of bromide from spiked samples of vegetable matter, measuredusing a gas–liquid chromatographic method. The same amount of bromide was added to each specimen(Roughan, J.A., Roughan, P.A. and Wilkins, J.P.G., 1983, Analyst, 108: 742).Tomato: 777 790 759 790 770 758 764 ug/gCucumber: 782 773 778 765 789 797 782 ug/g(a) Test whether the recoveries from the two vegetables have variances which differ significantly.(b) Test whether the mean recovery rates differ significantly.5. Which term is INCORRECTLY defined? a. linear range - the range over which the response of an analytical method is proportional to analyte concentration b. dynamic range concentration range over which there is a measurable response to analyte, though the response is not linear c. blank solution - a solution containing all reagents and solvents used in the analysis to which no analyte is deliberately added d. standard solutions - solutions for which the standard deviation is known - 6. True or False: Internal standards correct random error caused by run-to-run variation. a. True b. False1. These are balances that have a maximum loading of 10 to 30 g with a precision of 60.01 mgA. semi-microanalyticalB. MicroanalyticalC. MacrobalancesD. Triple Beam Balance2. Which type of curve is normally produced when plotting the change in the concentration of a specie of some function and the amount of reagent added?A. Titration curveB. Sigmoidal CurveC. Phase Transition curveD. Calibration curve3. In the dead dear case study, silver diethyldithiocarbamateforms a colored solution when it binds with arsenic, what do we call substance like silver diethyldithiocarbamate?A. Secondary standard reagentB. Precipitating agentC. Chelating agentD. Primary standard reagent