In paper chromatography, which of the following may cause premature separation? Select one: a. Using an open system as the chromatographic chamber b. Using a solvent with high polarity c. Using a solvent with low polarity d. Spotting the concentrate below the solvent level e. Spotting the concentrate on the paper only once

Q: When should you load your concentrated pigment solution onto your column in column chromatography?…

A: The correct time to add the concentrated pigment solution in the column is ' when the eluent is just…

Q: What part fo chromatography is being descibe by the following? a phase that is fixed in place either…

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Q: Choose correct letter of the answer. 1. Column/s used for normal phase chromatography- a.ODS b.…

A: In order to separate the components of mixtures, normal-phase liquid chromatography (NPLC) uses…

Q: Which of the following is NOT correctly related to the parts of paper chromatography set-up? a.…

A: Paper chromatography is a method for separating dissolved substances from one another.  The mobile…

Q: Which of the following statements actually support the viable use of column chromatography to…

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Q: Compare and contrast a column chromatography, TLC, and GC according to stationary phase,  moving…

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Q: What is more effective, column chromatography or recrystalization?

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Q: 2. A mixture of acid compounds is analyzed by paper chromatography. Use the centimeter uler to…

A: Retention  factor is used for  sperating mixtures and identifying the Compounds.

Q: Question attached

A: TLC It is abbreviated as thin layer chromatography. It is a technique used to isolate non-volatile…

Q: 1. The flame-ionization detector is used in gas chromatography because the eluates cannot be…

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

Q: Explain about Liquid Chromatography technique.

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Q: in what situation does one use  thin and/or column chromatography? You can any of theme for anything…

A: Chromatography is an analytical technique to separate mixtures into it's components.  It is also…

Q: In column chromatography, dyes with higher polarities tend to attach to which of the forbwing? A.…

A: The correct option is (B). Column chromatography= Column chromatography is a technic which is used…

Q: Indicate whether TLC (thin-layer chromatography) or column chromatography is more appropriate for…

A: we have to identify the techniques  based on the hints

Q: Using a normal phase chromatography, which solute will elute out first from column? Chlorophyll…

A: Answer In column chromatography the more polar compounds…

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…

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Q: Why is it important to mark the solvent level on the chromatography paper as soon as you remove it…

A: We know that, it is important to mark the solvent level on the chromatography paper as soon as it is…

Q: In Paper Chromatography, when the solvent wicks up the paper and causes the separation of your…

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Q: 1. Suggest a benefit to a long column in chromatography. What about a short column? (HPLC) 2. are…

A: Introduction:In high-performance liquid chromatography (HPLC), the column plays a critical role in…

Q: What types of columns are used in HPLC in chromatography?

A: HPLC stands for high performance liquid chromatography  which is used as a separation technique in…

Q: What can be used to determine the purity of aspirin product? A. TLC B. Melting point determination…

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Q: what do the different colors in the result of paper chromatography experiment indicates? 2. Why do…

A: Paper chromatography is a technique in which colour chemicals or substances are separated.

Q: 1. a. A sample consisting of 1-bromopropane and 1-chloropropane is injected into a gas chromatograph…

A: To answer: 1. a.) A sample consisting of 1-bromopropane and 1-chloropropane is injected into a gas…

Q: 1. What would be the effect of the following errors in chromatographic work? a) The solvent level in…

A: Thin layer chromatography (TLC) is a method of separating components of the mixture. it is based on…

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

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Q: If you use pure methanol in the begining of normal phase chromatography then A none of the above B…

A: In normal phase chromatography higher the polarity of solvent greater will be the chance of elution…

Q: Which liquid chromatography method would you recommend for each c the following sample solution?…

A: For a polymer mixture, Size exclusion chromatography (SEC) can be used. It is a separation technique…

Q: Which substance is best to run the column chromatography? a)The solvent that is very polar B)The…

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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: Choose the separation techniques that rely on differences in boiling points. A. Simple distillation…

A: To identify: The techniques which use the difference in boiling point for separation.

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

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Q: Which of the solvents below can be used with reversed phase chromatography? a. Acetonitrile b.…

A: Reverse phase chromatography is a separation technique in which the mobile phase (solvent )is polar…

Q: Flavonols are a type of flavonoids, in a silica gel stationary phase chromatography, with what kind…

A: Silica gel is SiO2, which means it has polar covalent bonds and it will interact with the polar…

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: 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: In normal phase chromatography, water is a weaker eluent than methanol., True or False?

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Q: What compounds present in a sample that can cause error in the analysis and alter desired results?…

A: Interpretation - We have to tell that due to which  compounds present in a sample that can cause…

Q: Explain why the indicators, red and blue,  are separated on the TLC plate during a chromatography…

A: Thin ayer chromatography is a chromatography technique, which is used to separate non-volatile…

Q: 1. Sensitivity in a flow-injection analysis is directly proportional to the height of an analyte's…

A: Answer is option e   Increase in flow rate,  decreasing the length and diameter of tubing using a…

Q: In the actual column chromatography experiment, which involves the use of eluents of increasing…

A: The concept used in this question is taken from Column chromatography .  Here we have to discuss…

Q: Match column A with column B. v Mobile phase: NON-POLAR Stationary phase: NON-POLAR v mobile phase -…

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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: Which of the following cannot be used as adsorbent in column chromatography?   a.   Silica gel…

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Q: Answer in your own words. What is the advantage of very small particle sizes in Liquid solid…

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Q: Which among the following applies to reversed phase chromatography?    i. Compounds of low polarity…

A: The correct answer about reversed phase chromatography is given below