Key Terms Mixture Solvent Suspension Dilute Colloid Concentrated Emulsion Condensation Solution Evaporation Solute Only one type of substanceparticle is present Pure Substances Pure Substances ID: 466220
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Slide1
MixturesSlide2
Key Terms
Mixture
Solvent
Suspension
Dilute
Colloid
Concentrated
Emulsion
Condensation
Solution
Evaporation
SoluteSlide3
Only
one type of substance/particle is present.
Pure SubstancesSlide4
Pure SubstancesSlide5
MixturesSlide6
Mixtures
More than one type of substance is present.Slide7
Types of MixtureSlide8
Types of Mixture
Suspension
Cloudy
Large particles mixed in solvent
Particles will settle if left alone
Separate through filtrationSlide9
Types of MixtureSlide10
Types of Mixture
Colloid
Cloudy
Particles are smaller than suspensions
Particles do not settle if left alone
Separate by flocculationSlide11
Types of MixtureSlide12
Types of Mixture
Solution
Clear (sometimes coloured)
Very small particles
Particles don’t settle if left
Separate by distillation or evaporationSlide13
Types of Mixture
Water loving head
Water
Oil loving tail Slide14
Types of Mixture
Emulsion
Eg
. Moisturisers, milk, ice cream
Fats and oils do not mix with water
Need a substance called an emulsifier
Water loving head
Water
Oil loving tail Slide15
Separation Techniques
Sedimentation & Flotation
Decanting
Centrifuging
Magnetic separation
FilteringEvaporation & CrystallisationDistillationChromatographySlide16
Evaporation & CrystallisationSlide17
Evaporation & Crystallisation
Separates solutions by evaporating solvent leaving behind solid.
Salar
de
Uyuni
in Bolivia, the world’s largest salt flat.Slide18
FilteringSlide19
Filtering
Separates by particle size
Large particles get caught in the paper while smaller ones pass through.
Some substances may need to go through a process of flocculation or treatment with activated charcoal before they can be filtered.Slide20
Separation TechniquesSlide21
Separation Techniques
Chromatography
Particles are separated by their level of attraction to either the solvent or the paper.Slide22
Sedimentation & FlotationSlide23
Sedimentation & Flotation
Separation of suspensions by density
Lighter substances float, heavier substances sinkSlide24
Separation Techniques
Oil
WaterSlide25
Separation Techniques
Decanting
Solids or dense liquids allowed to settle.
Top layer poured off or bottom layer released through a tap.
Oil
WaterSlide26
CentrifugingSlide27
Centrifuging
Particles are spun at very high
speeds.
Separates particles by
weight.Slide28
DistillationSlide29
Distillation
Separates liquids by boiling point
Liquids evaporate, then recondense in a condensing tube.Slide30
Image Credits
‘Cup of Tea’ by
newkemall
available at
http://www.freeimages.com/photo/1437150, courtesy of FreeImages.com‘Chocolate Brownie’ by subhadipin
available at http://www.freeimages.com/photo/1437370, courtesy of FreeImages.com‘Storm Over the Sea’ by MaRabelo
available at http://www.freeimages.com/photo/1445783, courtesy of FreeImages.com‘Flour Suspended in Water’ by Chris 73 available at
http://commons.wikimedia.org/wiki/File:WaterAndFlourSuspensionLiquid.jpg, via Wikimedia Commons.‘Chemical Precipitation Diagram’ By Vectorized
by ZooFari; raster by ZabMilenko (Own work) available at http://commons.wikimedia.org/wiki/File:Chemical_precipitation_diagram.svg
, via Wikimedia Commons‘Colloidal Stability’ by SunKart
at en.wikipedia available at http://commons.wikimedia.org/wiki/File:ColloidalStability.png, via Wikimedia CommonsSlide31
Image Credits
‘Salt and Sugar Solutions’ by Kelly Lancaster et
al available at
https://
phet.colorado.edu/en/simulation/sugar-and-salt-solutions
, courtesy of PhET Interactive simulations at the University of Colorado‘
Simple Emulsion’ By Adam Rędzikowski (Own work) available at http://upload.wikimedia.org/wikipedia/commons/7/77/Simple_emulsion.svg, via Wikimedia
Commons‘Piles of Salt Salar de Uyuni Bolivia Luca Galuzza 2006
a bloom’, By Edit by Wj32, available at http://upload.wikimedia.org/wikipedia/commons/8/8b/Piles_of_Salt_Salar_de_Uyuni_Bolivia_Luca_Galuzzi_2006_a_bloom.jpg, via Wikimedia
Commons‘Filter Diagram’ by Wikiwayman available at http://en.wikipedia.org/wiki/File:FilterDiagram.svg#filelinks
, via Wikimedia CommonsSlide32
Image Credits
‘Filter
Funnel Apparatus’ By
Smokefoot
(Own
work) available at http://upload.wikimedia.org/wikipedia/commons/e/ea/FilterFunnelApparatus.png, via Wikimedia
Commons‘Bundesarchiv Bild 183-1984-1002-002, Güstrow, Zuckerwerk
, Klärwerk’ by Bundesarchiv, Bild 183-1984-1002-002 / CC-BY-SA [CC BY-SA 3.0 de available
at http://upload.wikimedia.org/wikipedia/commons/6/62/Bundesarchiv_Bild_183-1984-1002-002%2C_G%C3%BCstrow%2C_Zuckerwerk%2C_Kl%C3%A4rwerk.jpg via Wikimedia Commons‘Separatory funnel-tag’
By Shakki (Own work) available at http://upload.wikimedia.org/wikipedia/commons/8/8b/Separatory_funnel-tag.svg, via Wikimedia CommonsSlide33
Image Credits
‘Tabletop Centrifuge’ By Magnus
Manske
(Own work) available at
http://
upload.wikimedia.org/wikipedia/commons/0/0d/Tabletop_centrifuge.jpg, via Wikimedia Commons‘
Krew Frakcjonowana’ By Zuzanna K. Filutowska (Own work) available at http://
upload.wikimedia.org/wikipedia/commons/5/5a/Krew_Frakcjonowana.jpg, via Wikimedia Commons‘Simple Distillation Apparatus’ By Original PNG by User:Quantockgoblin
, SVG adaptation by User:Slashme available at http://upload.wikimedia.org/wikipedia/commons/9/9c/Simple_distillation_apparatus.svg, via Wikimedia Commons