Betty Sue needed to purify her precious organic liquid (boiling point of 187 deg
ID: 888874 • Letter: B
Question
Betty Sue needed to purify her precious organic liquid (boiling point of 187 degree C) using simple distillation. However, upon carrying out the experiment nothing distilled over into the collection flask and the contents of the distilling pot unfortunately turned into a dark goopy mess. What happened and what should she have done to purify her liquid? Jim Bob synthesized ethyl acetate using ethanol as the solvent. Which laboratory technique discussed in recitation and/or lab this term could be used to isolate the ethyl acetate from the ethanol? Be sure to explain why your experimental choice is best. Survivor Jane is stranded on a deserted island in the south pacific that has no fresh water source. Luckily, Survivor Jane discovers a fully equipped and operational sophomore organic laboratory hidden in a cave! How can this fortunate discovery be used to keep Survivor Jane from dying of thirst? Yes, ochem lab can save your life!Explanation / Answer
Answer:
6). Thermometer should be used during reaction and temperature has to constantly at 187 0C. If temperature crossed more than 187 0C.
If any of the above conditions if not maintained, then the distillation process may be failed to do, in such cases the result will be unexpected.
7) Ethyl acetate boiling point = 77.1 0C
Ethanol boiling point = 78.37 0C
Both ethyl acetate and ethanol possess almost similar boiling point, in such cases simple distillation method is not suitable for the separation. Fractional distillation is the suitable method for the separation of ethyl acetate and ethanol.
Fractional distillation method is used when the difference in the boiling points of components of mixture is less than 5 0C.
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