Based on your observations during our experiment, would water make a suitable solvent for the recrystallization of benzoic acid that is significantly contaminated with fluorene using the method employed in our experiment? If not, suggest a technique that might be used to improve the outcome using water as the solvent. Simple and fractional distillation was the method used during the lab to purify substances and purified substance was separated from solvent using filtration.

Based on your observations during our experiment, would water make a suitable solvent for the recrystallization of benzoic acid that is significantly contaminated with fluorene using the method employed in our experiment? If not, suggest a technique that might be used to improve the outcome using water as the solvent. Simple and fractional distillation was the method used during the lab to purify substances and purified substance was separated from solvent using filtration.

EBK A SMALL SCALE APPROACH TO ORGANIC L

4th Edition

ISBN:9781305446021

Author:Lampman

Publisher:Lampman

Chapter80: Crystallization: Purification Of Solids

Section: Chapter Questions

Problem 4P

See similar textbooks

Similar questions

Give some reasons that would lead you to purify a liquid by using vacuum distillation rather than by using simple distillation.
for effective purification by recrystalization while avoiding performing a hot gravity filtration, what is the desired solubility of an impurity at different temperatures? Hot solvent solvent after cooling
How are solvents chosen for recrystallization? (single solvent or mixed-solvent system).What are the properties of a good solvent system? How are crystals collected?
Assume there is confusion as to the nature of a liquid that is being distilled off from 1,4 dimethoxybenzene. Describe a simple technique you could use to prove the nature of the substance being distilled off.
Why can't a mixture of water and diethyl ether be used for recrystallization?
Diethyl ether and methylene chloride are generally not suitable for use in recrystallization, but are frequently used as extraction solvents. Explain
a student performed a recrystallization on 515 mg of impure compound using ethanol. After isolating the crystals, he obtained only 215 mg of pure product. Knowing that his sample was only slightly impure, he concluded that a significant amount of product was lost. Explain what likely happened and what he can do to recover his product.
With respect to the lower condenser used in an apparatus for simple or fractional distillation. Why should the lower rather than the upper nipple be used for the water inlet?
How can you tell that a compound is impure? (or pure?) What are the characteristics considered when taking a melting point? What is recrystallization? What is happening on a molecular level (videos are provided) How are solvents chosen for recrystallization? (single solvent or mixed-solvent system).What are the properties of a good solvent system? How are crystals collected?
Compare the simple distillation of pure hexane and binary mixture of hexane and toluene to that of a fractional distillation?
During heating, some solution of NaCl splattered out of the evaporating dish. How would this affect the calculated percentage of mixture recovered upon separation?
Which statement about liquid-liquid extraction is not correct? * A- A solvent must be available that is miscible with the solution containing the substance to be extracted. B- The solvent used for extraction must have a good ability to dissolve the desired substance. C- The denser solution forms the bottom layer in the extraction funnel. D- The extraction funnel must be vented during the extraction procedure to prevent excessive build-up of pressure inside the extraction funnel. E- All these statements are correct.