Table 19.3 Elution sequence for compounds Hydrocarbons Fastest (will elute with nonpolar solvent) Olefins Ethers Halocarbons Aromatics Ketones Order of elution Aldehydes Esters Alcohols Amines Acids, strong bases Slowest (need a polar solvent)
Table 19.3 Elution sequence for compounds Hydrocarbons Fastest (will elute with nonpolar solvent) Olefins Ethers Halocarbons Aromatics Ketones Order of elution Aldehydes Esters Alcohols Amines Acids, strong bases Slowest (need a polar solvent)
Chapter16: Applications Of Neutralization Titrations
Section: Chapter Questions
Problem 16.6QAP
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Question
Consider a sample that is a mixture composed of biphenyl, benzoic acid, and benzyl alcohol. The sample is spotted on a TLC plate and developed in a dichloromethane– cyclohexane solvent mixture. Predict the relative Rf values for the three components in the sample. Hint: See Table .
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Step 1
Given data,
Consider a sample that is a mixture composed of biphenyl, benzoic acid, and benzyl alcohol. The sample is spotted on a TLC plate and developed in a dichloromethane-cyclohexane solvent mixture.
The relative Rf values for the three components in the sample have to be predicted.
The formula for the calculating relative Rf value has to be given below,
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