2. Using the TLC plate shown below, calculate the Rf value for each of the four spots. Spot 1 Spot 2 Spot 3a Spot 3b 3. Rank the following TLC elution solvents from least polar (1) to most polar (6): diethyl ether ethanol ethyl acetate hexane solvent front origin methanol water 4. For each of the following pairs of compounds, choose which will elute farther in a TLC experiment (i.e., which compound will have a larger R, value). Explain what factors led to your choice. a. Anthracene or Naphthalene Explanation: b. Benzaldehyde or Ethylbenzene Explanation: c. 4-Aminophenol or Acetaminophen Explanation: choice choice choice