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?
After washing a reaction mixture, an emulsion is observed instead of separate aqueous and organic layers. Which of the following actions would not improve the separation?