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In this lesson, we will learn how to describe the use of separatory funnels for washing and extraction methods, assessing hazards and common errors.
A student is extracting a solute into a non-halogenated
organic solvent using a separating funnel.
After inverting and shaking the flask, the apparatus appears as shown.
What must the student do before dispensing liquid from the separating funnel?
A large amount of solute remains in the aqueous layer.
After dispensing the bottom layer from the funnel, what must the student do?
After adding a liquid mixture to a separating funnel and
inserting a stopper, in which order should the following actions be performed?
Which of the following pieces of apparatus is not typically used when separating liquids?
When extracting a solute from an organic solvent into water, which of the following steps is not required?
washing a reaction mixture, an emulsion is observed instead of separate aqueous
and organic layers. Which of the following actions would not improve the
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