Assembling the Equipment
Clamp the side-arm flask and trap in place next to each other.
Using rubber tubing, connect the flask to the trap, then connect
the trap to the vacuum source. The trap should have one piece
of tubing open to the air; place an open screw clamp onto this
piece of tubing. Put the Buchner funnel onto the flask, and place
an unfolded piece of filter paper on the flat surface of the funnel.