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18 Nov 2019
Separation of substances by TLC is based on differences in what molecular property? State what the mobile phase, adsorbent, and solid support are in terms of a TLC experiment. Does the R_f value for a compound depend on the composition of the solvent used to develop the TLC plate? Explain your reasoning. in general, how does one identify (i.e., choose) the best eluent to use for a TLC analysis? Why is it important that the solvent level in the TLC developing chamber be below the level of the sample spots? Why do you use a pencil, rather than a pen, to mark the spotting line on a TLC plate? in this experiment, TLC plates will be visualized using an isoaldehyde stain reagent. This method of visualization depends on the ability of a compound to react with the stain reagent and produce a visible (colored) spot. What functional group do all 4 compounds have in common that is most likely to react with the stain reagent and produce a visible spot? Give an example of a "destructive
Separation of substances by TLC is based on differences in what molecular property? State what the mobile phase, adsorbent, and solid support are in terms of a TLC experiment. Does the R_f value for a compound depend on the composition of the solvent used to develop the TLC plate? Explain your reasoning. in general, how does one identify (i.e., choose) the best eluent to use for a TLC analysis? Why is it important that the solvent level in the TLC developing chamber be below the level of the sample spots? Why do you use a pencil, rather than a pen, to mark the spotting line on a TLC plate? in this experiment, TLC plates will be visualized using an isoaldehyde stain reagent. This method of visualization depends on the ability of a compound to react with the stain reagent and produce a visible (colored) spot. What functional group do all 4 compounds have in common that is most likely to react with the stain reagent and produce a visible spot? Give an example of a "destructive
Irving HeathcoteLv2
19 Feb 2019