4.3 - Separating soluble substances - Archive Flashcards
What is the process of chromatography?
Chromatography is a a technique for the separation of a mixture by passing it in a solution through something in which the components move at different rates.
What is the process of Evaporation?
heat forcing the bonds that hold water molecules together to break.
What is the process of Distillation?
The process of distillation begins evapouartion. The liquid evaporates, forming a vapor. The vapor is then cooled, through a condenser which turns back into a liquid.
Which evaporation technique creates LARGE crystals?
Slow evaporation.
Which process involves heating a mixture to convert the liquid component into vapor, which is then condensed back into a liquid form?
Distillation.
What does the term insoluble mean?
A solute that cannot dissolvein a solvent.
What is the name of the unwanted substance dissolved in a liquid during the process of crystalisation?
Impurities.
Which scenario is most likely to use distillation as a separation technique?
Creating an alcoholic beverages in a factory.
When performing chromatography, what state of matter is the mixture typically in?
Liquid.
What is the key difference between the processes of evaporation and distillation?
Distillation allows the liquid part of the mixture to be recovered, however evaporation does not.
What is a colloid?
A colloid is a mixture of two or more substances mixed together but not chemically combined.
