How To Separate Solutions, Mixtures & Emulsions | Chemical Tests | Chemistry | FuseSchool
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8 سال پیش
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How To Separate Solutions, Mixtures
How To Separate Solutions, Mixtures & Emulsions | Chemical Tests | Chemistry | FuseSchool
Learn the basics about separating solutions, mixtures and emulsions when learning about separation techniques as a part of chemical tests.
A solution is a mixture of two or more substances in the same phase. It is formed when a solute dissolves in a solvent. When salt is dissolved in water, a solution is formed. A solution can also be formed when two or more miscible liquids are mixed together.
To separate dissolved salt from water, evaporate as much water as possible, leaving behind white salt crystals.This separation technique is known as evaporation.
To separate ethanol from water, use the fact that both substances have very different boiling points. This mixture can be separated by simple distillation. The lower boiling component will boil and evaporate first, so it can easily be collected separately from the ethanol.
Salt and water, and ethanol and water are homogenous mixtures – this means that the components of the mixture are in the same phase, or the composition of the mixture is uniform throughout.
Heterogeneous mixtures are where the components in the mixture are not in the same phase, or the composition of the mixture is uneven. A mixture of sulfur and iron filings is a heterogenous mixture.
There are many different techniques to separate mixtures, depending on whether the mixture is homogenous or heterogeneous.
Magnets can be used to separate out magnetic components in heterogenous mixtures. Salt and sand can be separated using water to dissolve the salt, and then evaporation to separate the salt back from the water once more.
Two immiscible liquids, such as oil and water, can be separated using a separatory funnel.
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Learn the basics about separating solutions, mixtures and emulsions when learning about separation techniques as a part of chemical tests.
A solution is a mixture of two or more substances in the same phase. It is formed when a solute dissolves in a solvent. When salt is dissolved in water, a solution is formed. A solution can also be formed when two or more miscible liquids are mixed together.
To separate dissolved salt from water, evaporate as much water as possible, leaving behind white salt crystals.This separation technique is known as evaporation.
To separate ethanol from water, use the fact that both substances have very different boiling points. This mixture can be separated by simple distillation. The lower boiling component will boil and evaporate first, so it can easily be collected separately from the ethanol.
Salt and water, and ethanol and water are homogenous mixtures – this means that the components of the mixture are in the same phase, or the composition of the mixture is uniform throughout.
Heterogeneous mixtures are where the components in the mixture are not in the same phase, or the composition of the mixture is uneven. A mixture of sulfur and iron filings is a heterogenous mixture.
There are many different techniques to separate mixtures, depending on whether the mixture is homogenous or heterogeneous.
Magnets can be used to separate out magnetic components in heterogenous mixtures. Salt and sand can be separated using water to dissolve the salt, and then evaporation to separate the salt back from the water once more.
Two immiscible liquids, such as oil and water, can be separated using a separatory funnel.
SUPPORT US ON PATREON
Patreon: fuseschool
SUBSCRIBE to the FuseSchool YouTube channel for many more educational videos. Our teachers and animators come together to make fun & easy-to-understand videos in Chemistry, Biology, Physics, Maths & ICT.
VISIT us at www.fuseschool.org, where all of our videos are carefully organised into topics and specific orders, and to see what else we have on offer. Comment, like and share with other learners. You can both ask and answer questions, and teachers will get back to you.
These videos can be used in a flipped classroom model or as a revision aid.
Find all of our Chemistry videos here: CHEMISTRY
Find all of our Biology videos here: BIOLOGY
Find all of our Physics videos here: PHYSICS
Find all of our Maths videos here: MATHS
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This is an Open Educational Resource. If you would like to use the video, please contact us: [email protected]
8 سال پیش
در تاریخ 1394/12/14 منتشر شده
است.
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