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level: Mixture separation

Questions and Answers List

level questions: Mixture separation

Question	Answer
What are the for main methods used to separate mixtures?	Distillation, Chromatography, Evaporation and Filtration
What do each of the separation methods make use of in order to separate the different parts out?	Each parts properties
What is the process followed by the filtration method?	Passing a liquid through a filter to remove insoluble parts
What is the process follwed by the evaporation method?	Heating liquid until it turns to steam, leaving behind solids that were diluted in the liquid
What is the process follwed by the chromatography method?	Putting a mixture on a stationary filter, and allowing the solvent to separate the different parts out, as they travel at different rates
What is the chromatography method an ideal use for?	Separating out different substances in an ink or dye
What is the process follwed by the distillation method?	A mixture of liquid and solid is heated, cooled and condensed, allowing liquid and solid to be collected separately
What is the distillation method ideal for?	Collecting pure water from a mixture
What is the name of the process that allows the separation of a mixture of liquids?	Fractional distillation
What is the process followed by fractional distillation?	The mixture is heated to each substances boiling temperature, so each part is evaporated separately
What is the fractional distillation method ideal for?	Separating fuels from crude oil
Each pure chemical substance has a fixed..?	Melting and boiling point
What can affect the melting and boiling point of a substance?	Impurities
What aspect of a substance can you test by knowing it's boiling and melting point?	Purity