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In most distillations, the total volume of liquid obtained (distillate + residue) is possible sources of loss in this procedure?
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- Propose a extraction flowchart capable of seperating this mixture into its pure formPinacl-Pinacole lab What visual criterion is to be used to assess whether the crude reaction product is dry prior to semimicro distillation?Based on the resulting chromatograms after visualization with iodine vapor, which between the solvent systems WHITE and MIX resulted in a more effective separation of the pigments of the indigo extract? Explain your answer in terms of the solvent that did not effectively separate the components of the root extract.
- An orange compound was added to the top of a chromatography column. Solvent was added immediately, with the result that the entire volume of solvent in the solvent reservoir turned orange. No separation could be obtained from the chromatography experiment. What went wrong?A student properly sets up a column chromatography experiment. Although the mixture is soluble in the mobile phase, the sample appears "stuck" at the top of the column and will not elute regardless of how much solvent is applied. What could be the cause of this problem and what could the student do to try and achieve a successful separation?Recrystallized 2-naphthol compared to literature values • Format the table and the descriptive paragraphs. Full comparisons of peaks are to be made with reference to the SDBS database for all three compounds.
- What is the other term for mobile phase in chromatography? (Eluant, Eluate, or Solvent)With the methods and GC columns used in organic labs, the volatility of the nitrotoluene products is the factor that is most responsible for the separation of the products in the GC. Predict the order of the nitrotoluene retention times expected in your chromatogram. Order from lowest (top) to highest (bottom) retention time. Para-Nitrotolulene, Meta-Nitrotolulene, Ortho-NitrotoluleneWhat is/are the limiting reagent(s) for this three-step procedure? Why is sodium borohydride not the limiting reagent even though a smaller number of moles of this reagent are used? Mass/volume used in experiment: O-vanillin = 0.760g P-toluidine = 0.535g Ethanol = 15 ml Sodium borohydride = 0.1 g Glacial acetic acid = 2 ml Acetic anhydride = 2 ml
- The experiment wAs preformed using a recrystallization of salicylic acid. The IR was preformed using a KBR pellet method Re-state the diagnostic peaks from the results, this time with the intention of comparing the experimental to literature diagnostic values as well as fingerprint regions to provide evidence to answer your hypothesis. After comparing your values, you must discuss what conclusions you obtained (i.e. was there evidence to support that your compound is pure?)Gestation time arrangement of Hegran, Hexanol, and Benzene compounds in the reverse phase of column liquid chromatography.Consider a mixture containing 0.5 g of benzil and 0.05 g of benzoin. Your task is to isolate benzil in a pure form. Could you accomplish this using an extraction procedure? If yes, explain how you would do this. If not, suggest another technique that would accomplish this.
