Suppose you notice a solid impurity in a small liquid sample with a volume less than 10 mL. What technique can you use to remove the solid impurity?
Select one:
Filter the sample through a Pasteur pipet with glass wool in it.
Add a solvent to dissolve the solid and use a separatory funnel.
Heat the sample until the impurity dissolves back into the solution.
Decant the solution away from the solid impurity.