This mark is needed to calculate Rf (Retention factor) values.Spotting a TLCTo spot a TLC, first dissolve the material to be separated in a solvent. Then, draw some solvent into a capillary, and press the capillary onto the TLC place medium. If done correctly, the solvent should all ...
How to calculate R_f values for thin layer chromatography? Where in the infrared spectrum would you expect the given compound to absorb? Why does H2 not give an IR spectrum? How would you analysed the H NMR spectra of 9-fluorenone prov...
1. What would be the result of failing to mark the solvent front after developing a TLC plate? Would this affect your ability to calculate component Rt values? Why or why not? 2. What would happen if How could you use IR spectroscopy to determine if the following ...
Explain whether each of the errors below would cause your calculated K_{sp} value to be higher or lower than the tabulated value. Assume you are using method (1) to calculate K_{sp}. It is also possible that the error would have no effect...
How to calculate the distribution coefficient in caffeine? Explain the role of the boiling chips during reflux and distillation. When extracting caffeine from tea, what chemical properties lead to the separation of the substance into two layers after adding dichloromethane? How would you ex...
How do you calculate the filtration rate in chromatography? Describe three general methods for improving resolution in partition chromatography. What are interactions that result in a small RF value in chromatography? Why is it important not to dilute the...
Would this affect your ability to calculate component Rt values? Why or why not? 2. What would happen if Explain how you used your TLC plate and the standard solutions to identify your product(s) How can you tell based on the TLC plate if ...
1. What would be the result of failing to mark the solvent front after developing a TLC plate? Would this affect your ability to calculate component Rt values? Why or why not? 2. What would happen if What are interactions that result in a large RF value in chromatogr...
Explain why the center of the band is used to calculate the Rf value for a cation rather than the leading edge of the bandDescribe the different types of metallic indicator electrodes.Explain how electrons are waves and not particles. Give a brief example to ...
What are possible ways or techniques to detect arsenic in a sample? How do you calculate the electroosmotic flow rate for capillary electrophoresis? Explain how capillary electrophoresis works. when doing an IR analysis, how can I differentiate between broad, strong, s...