5 Written questions
4 Multiple choice questions
- the process in which a solid changes directly into a gas
- The continual boiling and condensing of a reaction mixture to ensure that the reaction takes place without the contents of the flask boiling dry.
- container that can be sealed from the atmosphere and holds a drying agent
- A technique that uses a solid stationary phase and a moving liquid phase to separate the components of a mixture.
4 True/False questions
Gas Chromatography → mixture of compounds to be separated is introduced onto the column that is packed with a stationary solid. The solid is continuously washed by a flow of solvent (mobile) passing through the column. The continuous flow of solvent throught the column and the interaction b/w the solid compounds in the mixture, separates the mixture as it passes down the colum.
Recrystallization → the process in which a solid changes directly into a gas
Column Chromatography → An analytical technique which separates mixtures based on their distribution between a stationary liquid phase and a moving gas phase.
Fractional Distillation → useful to separate two liquids w/ vastly diff. boiling points at least 20 degrees C.