1. What is paper chromatograpy? 2. What are the stationary phase and mobile phase in paper chromatograpy? 3. What is the principle underlying the paper chromatograpy?

Q: IN GC, What effect does changing from a temperature ramp to an isothermal temperature program have…

A: Gas chromatography is the process of separating compounds in a mixture by injecting a gaseous or…

Q: In molecular exclusion (size exclusion) chromatography, molecules have the the longest retention…

A: Molecular exclusion chromatography is base on size of molecules. It is a separation technique that…

Q: Thin layer chromatography :  When placed on a plate, the silica gel has a polar surface. Explain…

A: The objective of the question is to understand why silica gel has a polar surface when used in thin…

Q: Why is it important to never let the level of the eluant (mobile phase) drop below the level of the…

A: Chromatography is a separation technique used in chemistry to separate and analyze mixtures. It…

Q: Given the Rf of four spots in a normal phase paper chromatography, which of the following is the…

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Q: Look up the structures of naphthalene and benzoic acid and determine their polarities. Using the…

A: Given Naphthalene and benzoic acid Naphthalene Benzoic acid

Q: 3. Would you expect an alcohol or an ether to have a higher R¡ value on silica gel thin layer…

A: TLC is an analytical technique which can be used to monitor the organic reaction transformations.…

Q: same Rf

A: Paper chromatography is the simplest technique to separate the colored compounds, polar-non polar…

Q: We use reverse phase column chromatography with a non-polar C18 stationary phase and a mixture of…

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Q: Define chiral chromatography and the underlying principle behind used to separate components of an…

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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…

Q: plate coated with silica gel, with propanone, CH3COCH3, as the solvent for thin-layer…

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Q: When using liquid chromatography to separate a mixture containing at least two compounds , A and B.…

A: compound A will elute first, i have discussed the reason for it below

Q: errors in thin layer chromatography?

A: Thin Layer Chromatography (TLC) is used in order to separate components in a reaction mixture.

Q: Which of the following can improve the separation of components in chromatography? A. Using…

A: a)  Packed columns offer high sample capacity, while open tubular columns give better separation…

Q: In color chromatography of plant pigments, what complications would a dried-out column (solvent…

A: Column chromatography separates molecule mixture based on their differential adsorption on the…

Q: Column resolution is an indicator to identify the selectivities and efficiencies of the column…

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Q: b. Describe the THREE major classification of Chromatography b. Two compounds in gas chromatography…

A: Chromatography is a useful technique to precisely separate, analyse, and purify a wide range of…

Q: 1. Describe the general principle of spectrophotometry 2. What is Beer's law? What is the…

A: As per the guidelines we are supposed to answer the first three questions to solve remaining…

Q: During a Thin layer chromatography (TLC) analysis of crystallized  napthalene, What would be the…

A: Interpretation: To explain the effect of addition of acetic acid to crystallized naphthalene during…

Q: What controls the mobile phase flow rate in ascending TLC or paper chromatography? Do you think it…

A: The answer is given below

Q: True or False: Liquid-solid  phase column chromatography is used to separate large up to multigram…

A: The above statement is true.

Q: In a thin layer chromatography experiment, a plate of length 8.67 cm was used and a horizontal line…

A: Retention factor (Rf) is defined as the ratio of the distance travelled by the compound (dc) to the…

Q: In thin-layer chromatography on silica gel TLC plates, which of these is true? a. More polar…

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Q: Describe one alternative column other than a C18 for caffeine detection in terms of stationary phase

A: C18 columns are present in high performance liquid chromatography (HPLC) that are utilized as a…

Q: An orange compound, dissolved in dichloromethane, is added to a chromatogra- phy column. The elution…

A: Given:An orange compound is dissolved in dichloromethane.The compound is added to a chromatography…

Q: 3. Two mobile phases were evaluated to study the behavior of five dyes. The following data from each…

A: (a) Retention factor (Rf) is the ratio of the distance moved by the solute (dye) to the distance…

Q: PART A: Substance A was found to have a retention times of 3.15 minutes on a 70.00-cm column. An…

A: Hello. Since the question contains multiple subparts, the first three parts are solved. In case the…

Q: Using triangulation, calculate the percentage of each component in a mixture composed of two…

A: We are going to make a photocopy of the chromatogram in Figure 22.17. Then cut out the peaks and…

Q: In normal-phase chromatography, the stationary phase is Therefore, the eluent strength of the…

A: Normal Phase Chromatography - It is one of the separation method where the components are divided…

Q: Why does the efficiency (decreased plate height) of liquid chromatography increase as the stationary…

A: to improve resolution in HPLC  by Increasing column length. by Decreasing particle size. by…

Q: a) What would you see if you ran a Thin Layer Chromatography (TLC) on a mixture of the three solids…

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Q: Explain how we would run a paper chromatography on an amino acid sample (explain the procedure or…

A: Paper chromatography is the chromatography based on liquid-liquid partition chromatography. It…

Q: 1.An organic compound is made and needs separating from the reaction mixture and impurities. The…

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

Q: stationary phase and mobile phase

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Q: In one paper chromatography, the Rf for spots X and Y are 0.5 and 0.35 respectively. The solvent…

A: In paper chromatography Rf value is the ratio of distance travelled by compound to distance…

Q: If the stationary phase and the compound being tested are both polar, will the retention factor (Rf)…

A: Given that both the stationary phase and the compound being tested are polar.

Q: n paper chromatography,

A: Paper chromatography was discovered by Synge and Martin in the year 1943.

Q: Which of the following is/are characteristic of silica as stationary phase in chromatography? O It…

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Q: 5. Draw and label a box diagram for a double-beam spectrophotometer. What advantages does a double…

A: diagram :

Q: Thin layer chromatography of spinach a normal phase chromatography or reverse phase chromatography?…

A: Chromatography is a separation technique used for separating compounds based on their polarity.

Q: The Rf of four spots in a normal phase paper chromatography is given. Determine which of these is…

A: Here the the rf factor is a tool to determine which spot is polar or non polar. The least rf value…

Q: In chromatography, the compound that is least soluble in the mobile phase a) Travels the furthest…

A: When a compound is dissolved in the mobile phase it is carried along the direction of flow, but when…

Q: 7. In gas chromatography, increasing the column length leads to analytes, assuming all other…

A: Since you have posted multiple questions, we will provide the solution only to the first question as…

Q: 4. The paper chromatogram of an unknown mixture is shown below: final solvent level 5.3 cm 6.0 cm B…

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