Filtration and Crystallysation and water purity Flashcards
What are filters used for?
To seperate some mixtures. They let smaller materials through but not insoluble substances.
What is crystallysation?
solutes are seperated from solvents leaving solutes behind
what is a solvent?
The thing a solute is dissolve in
what is a solute?
the solid that is dissolved into the solvent
What is a solution?
A mixture where a solute has been dissolved in a solvent
What is distillation used for?
to seperate liquids in solutions
what are anti-bumping granules?
to make the liquid boil more smoothly
What can fractional distillation be used for?
seperating different products in crude oil, seperate out gases in the air after it has been cooled and turned into a liquid at -200 degrees. mak alcoholic drinks such as whiskey and vodka
how do anti-bumping granules work?
small bubbles or vapour form on them and reduce risk of liquid boiling over
Give examples of different ways to purify water?
distillation, sedimentation, chlorination, filtration,
Why should water not contain dissolved salts when using it for an experiment?
The results will be inaccurate because you don’t know whether the results are coming from the salts or the water itself.
