Student Name: TA Name: Experiment 1: Sample Purification by Distillation Questio
ID: 566198 • Letter: S
Question
Student Name: TA Name: Experiment 1: Sample Purification by Distillation Questions - Please answer the o following questions. Limited partial credit will be given. quest 1. Consider the two alcohols below. Which one would you expect to have the higher boiling point? a higher boiling point than the other 2. If compound A has a boiling point of 135'C, compound B has a boiling point of 35'C and compound C has a boiling point of 86'C, what order will the compound come out of the GC in? 3. Would simple distillation be an effective method to separate toluene from dichloromethane? Explain your answerExplanation / Answer
Among hydrocarbon the factors that determine boiling point seem to be chiefly molecular weight and shape; this to be expected of molecules that are held together chiefly by van der waals forces. Alcohols, too, show increase in boiling point with increasing carbon number, and decrease in boiling point with branching. Example: the boiling point of n-propyl alcohol is 97oc and isopropyl alcohol is 82.5oc. Depends upon the strength of the bond between two atoms. Simple distillation method is a simple techniques to analysis of toluene from dichloromethane.