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Q5; 100% Hexanes, Rf will be equal to 0.01
90% Hexanes 10% ethanol, Rf will be equal to 0.23
60% Hexanes 40% ethanol,, Rf will be equal to 0.48
100%ethanol,Rf will be equal to 0.91
Glasswool : Plugs opening at teh bottom of column
Eluent and adsorbent: Helps seperate the mixture based on polarity of compounds in the mixture
Bottom layer of sand: provides level support for the column of adsorbent
Top layes of Sand : Helps keep the top of column level and intact
A TLC of an organic solid (acetyl salicylic acid, aspirin) was run in 4 different eluents....
Hi can someone help me with my pre lab theory questions (1,2,3) on rate of elution or Rf? Here is some background below. Please help explain as many as possible (1-3)! I dont really get the relation ships in this lab, thank you! 1. What factors affect the rate of elution in organic compounds? 2. Explain what is the relationship between polarities of compounds (polar/non- polar compound) and rate of elution (Rf). 3. Explain what is the relationship between solvent...
Determine the yield limiting reagent and the theoretical yield for the following multistep synthesis from the reaction of ethyl acetoacetate. Draw the chemical complete chemical reaction and mechanism of Product C (determined to be 4-hydroxy-4 4-diphenylbutan-2-one) to Product E provided the procedure below. Procedure Step 4B [Product C to Product E] Place product [C] (0.5 g) in a 50 mL round bottomed flask, add acetone (15 mL), and concentrated HCl (2.5 mL). Boil under reflux on a water bath for...
Evaluate and investigate the following IR Spectrum, 13C NMR Spectrum and 1H NMR Spectrum. Identify the most important peaks and correlate the results as much as you can from the obtained product in the multi-step synthesis of ethyl acetoacetate. This is Product E from this multi-step synthesis where Product C was identified as in the figure below and as such, identify what product can be obtained after the synthesis from the spectra provided. Use the template below in analysing the...