1 / 12

Emulsions & Colloids

Emulsions & Colloids. Mixtures. Combo of 2 or more pure substances Physically combined NOT chemically combined Each substance retains its own identity and properties. Mixtures. Variable composition No unique properties Ex: sugar and sand mixed together Separated by physical methods

kaori
Download Presentation

Emulsions & Colloids

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Emulsions & Colloids

  2. Mixtures • Combo of 2 or more pure substances • Physically combinedNOTchemically combined • Each substance retains its own identity and properties

  3. Mixtures • Variable composition • No unique properties • Ex: sugar and sand mixed together • Separated byphysical methods • May be homogeneous or heterogeneous

  4. Types of Mixtures • Homogeneous • Heterogeneous

  5. Homogeneous: constant composition throughout, single phase Homogeneous mixtures = solutions

  6. Homogeneous Solutions: Drink mix Window cleaner Air

  7. Heterogeneous: See boundary or regions that look different Heterogenous mixtures = suspensions

  8. Heterogeneous mixtures:cereal/granite Heterogeneous mixture: ice water

  9. Suspension subtypes: • Emulsions: • 2+ liquids that don’t mix • Colloids: • contain very tiny particles • evenly dispersed but don’t dissolve • big enough to scatter light

  10. Suspension: smoke/smog Emulsion: oil & vinegar Colloid: milk

  11. Hints for Mixtures • Solutionstransmit light • No particles big enough to scatter light • Look translucent (can see-through) • Suspensions scatter light • Particles big enough to scatter light • Settle upon standing • Look cloudy (can’t see-through)

  12. Where does this liquid fit? Homogeneous? Heterogeneous?

More Related