5 Written questions
4 Multiple choice questions
- The continual boiling and condensing of a reaction mixture to ensure that the reaction takes place without the contents of the flask boiling dry.
- An analytical technique which separates mixtures based on their distribution between a stationary liquid phase and a moving gas phase.
- condenser such that vapor over a boiling liquid is condensed and flows back into the vessel to prevent its contents from boiling dry
- container that can be sealed from the atmosphere and holds a drying agent
4 True/False questions
Simple Distillation → useful to separate two liquids w/ vastly diff. boiling points at least 20 degrees C.
Vacuum Filtration → a process in which an applied vacuum draws a solution through filter paper held in a Buchner funnel.
Thin layer Chromatography → A technique that uses a solid stationary phase and a moving liquid phase to separate the components of a mixture.
recrystallization → Separation technique used to purify particles of interest from a mixture of solids. Mixture is dissolved in saturating amounts in warm solvent. As the solution cools, the pure substance crystallizes while impurities remain in solution.