5 Written questions
4 Multiple choice questions
- 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.
- An analytical technique which separates mixtures based on their distribution between a stationary liquid phase and a moving gas phase.
- the process in which a solid changes directly into a gas
- A technique that uses a solid stationary phase and a moving liquid phase to separate the components of a mixture.
4 True/False questions
Vacuum Filtration → Gravity filtration is used for when the desired product is in solution (usually hot) where as vacuum filtration has the desired product being a solid.
Column Chromatography → An analytical technique which separates mixtures based on their distribution between a stationary liquid phase and a moving gas phase.
Simple Distillation → useful to separate two liquids w/ vastly diff. boiling points at least 20 degrees C.
Reflux condenser → condenser such that vapor over a boiling liquid is condensed and flows back into the vessel to prevent its contents from boiling dry