Are the ammonia distillation and the AAS a macroanalysis or a microanalysis? In which analysis is there a greater chance of percentage deviations in the result?
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- Identify the expected observation after mixing each set of reagents. AgNO3 (aq) + NaBr (aq) Choose. H2SO4 (aq) + Na2S (aq) Choose... CuSO4 (aq) + KI (aq) Choose... AgNO3 (aq) + HCI (aq) Choose..7) Rank the two starting materials and desired product in terms of increasing gas chromatogram retention time, lowest time first. Explain your reasoning.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.
- Which layer (aqueous or organic) will naphthalene partition into during the extraction process? 3M HCL or Ethyl AcetateThe following chromatogram was the output of the analysis of phytosterols in plants by gas chromatography. Cholesterol Campesterol Stigmasterol Brassicasterel osteral 16.5 17.0 17.5 18.0 18.5 Min From the chromatogram which compound had the lowest boiling point? A Campesterol B Stigmasterol Cholesterol26. A mixture containing heptane, 2,2-dimethylbutane, hexanoic acid and heptanol was separated by gas/liquid chromatography. The stationary phase used was polar. In what order would the components leave the column? (A) (B) (D) Heptane, heptanol, hexanoic acid, 2,2-dimethylbutane Hexanoic acid, heptanol, heptane, 2,2-dimethylbutane 2, 2-dimethylbutane, heptane, heptanol, hexanoic acid Heptanol, 2, 2-dimethylbutane, hexanoic acid, heptane
- 1.0 g of a compound A is prepared in 100 mL of water, and then extracted with 50 mL of ether. After the extraction, 0.25 g of the compound was recovered from the ether layer. What is the partitioning coefficient([A]ether/[A]water) for this compound in the system used? 50 ml ether 0g 0.25 g 1g 100 ml water O 4.0 O 3.0 O 1.5 O 0.75 O 0.25 O 0.67Which solvent is appropriate to use in the iodoform test? Select one: Dioxane Acetaldehyde Acetone Complete explaination neededAfter extracting NaOH two times from ether, does the amount of precipitate after adding HCl in both tubes indicate that all acid impurity has been removed from the ether layer containing the neutral compound? There was a lot of precipitate in the first extraction and almost nothing in the second extraction after adding HCl to both.
- Three sample, X (neutral), Y (basic), and Z (acidic), were mixed and dissolved together in dichloromethane. Propose a method to separate all given sample individually using the combination of liquid-liquid extraction, crystallization, distillation, and sublimation technique.A thin-layer chromatography (TLC) experiement was run using three compunds: benzophenone, benzhydrol, and biphenyl. The three solvents that were used with the three compounds were hexane, ethyl acetate, and dichloromethane. Which solvent would be the best for separating these compounds and why?3. To determine ethanol content in beer using Gas Chromatography (GC) - Flame Ionization Detection (FID), which of the following is the suitable internal standard? (A) Acetone (B) n-propanol (C) Propane (D) Water