GR8 MIXTURES & SEPARATION TECHNIQUES by Lizelle Swanepoel https://padlet.com/lizellexs/frras5zllpw8lll5 en-us 2021-04-14 21:02:40 UTC 2025-04-24 11:56:13 UTC hello@padlet.com https://padlet.net/icons/png/1f9ea.png EXERCISE lizellexs https://padlet.com/lizellexs/frras5zllpw8lll5/wish/1418552506 Choose from column B the separation method which is most suitable to separate a substance in column A.  An item in column B may be chosen more than once.
Column A                                            Column B
1.              water and olive oil             A.    magnet
2.              water and table salt         B.    hand sorting
3.              fuels in crude oil               C.    filtration H2O solvent
4.              nuts and rice                     D.    separating funnel
5.              purification of sea water  E.    heating strongly
6.              sulphur and iron filings     F.    distillation                   
7.              water and alcohol             G.    fractional distillation                   
]]> 2021-04-14 21:19:29 UTC https://padlet.com/lizellexs/frras5zllpw8lll5/wish/1418552506 SEPARATION TECHNIQUES lizellexs https://padlet.com/lizellexs/frras5zllpw8lll5/wish/1418574008 2021-04-14 21:28:48 UTC https://padlet.com/lizellexs/frras5zllpw8lll5/wish/1418574008 LAB PRAC - SEPARATING MIXTURES lizellexs https://padlet.com/lizellexs/frras5zllpw8lll5/wish/1442043989 This is for marks for the term:]]> 2021-04-21 11:25:21 UTC https://padlet.com/lizellexs/frras5zllpw8lll5/wish/1442043989 NOTES 2022 lizellexs https://padlet.com/lizellexs/frras5zllpw8lll5/wish/1442054377 2021-04-21 11:30:08 UTC https://padlet.com/lizellexs/frras5zllpw8lll5/wish/1442054377 EMULSION VS SUSPENSION lizellexs https://padlet.com/lizellexs/frras5zllpw8lll5/wish/1446121386 2021-04-22 07:53:35 UTC https://padlet.com/lizellexs/frras5zllpw8lll5/wish/1446121386 PERFORMING A FILTRATION lizellexs https://padlet.com/lizellexs/frras5zllpw8lll5/wish/1449140191 How to fold filter paper.]]> 2021-04-22 19:42:24 UTC https://padlet.com/lizellexs/frras5zllpw8lll5/wish/1449140191 CENTRIFUGATION lizellexs https://padlet.com/lizellexs/frras5zllpw8lll5/wish/1472488777 Uses principle of different densities and centrifugal force to separate mixture:]]> 2021-04-29 07:05:18 UTC https://padlet.com/lizellexs/frras5zllpw8lll5/wish/1472488777 CHROMATOGRAPHY lizellexs https://padlet.com/lizellexs/frras5zllpw8lll5/wish/1485119059 2021-05-03 13:26:46 UTC https://padlet.com/lizellexs/frras5zllpw8lll5/wish/1485119059 lizellexs https://padlet.com/lizellexs/frras5zllpw8lll5/wish/1485126904 2021-05-03 13:28:25 UTC https://padlet.com/lizellexs/frras5zllpw8lll5/wish/1485126904 IS RED WINE A PURE SUBSTANCE? lizellexs https://padlet.com/lizellexs/frras5zllpw8lll5/wish/1522368796 By doing a fractional distillation. 
Fractional distillation setup:]]> 2021-05-13 18:59:46 UTC https://padlet.com/lizellexs/frras5zllpw8lll5/wish/1522368796 Separating substances using a Centrifuge lizellexs https://padlet.com/lizellexs/frras5zllpw8lll5/wish/2140423515
  • In this method suspensions (and even emulsions) are separated by spinning the mixture rapidly (The world fastest is 150 000 revolutions per minute (rpm)).  
  • The denser substance is “thrown” outwards to the base of each container via centrifugal force. 
  • e.g. If milk is spun, the less dense cream ends up on top of the rest of the milk and can then be skimmed off to give “skimmed milk”.

    • ]]>     2022-04-12 06:59:40 UTC https://padlet.com/lizellexs/frras5zllpw8lll5/wish/2140423515     lizellexs https://padlet.com/lizellexs/frras5zllpw8lll5/wish/2140431938 2022-04-12 07:07:46 UTC https://padlet.com/lizellexs/frras5zllpw8lll5/wish/2140431938 ALLOYS lizellexs https://padlet.com/lizellexs/frras5zllpw8lll5/wish/2142753043 2022-04-13 17:31:27 UTC https://padlet.com/lizellexs/frras5zllpw8lll5/wish/2142753043 SOLUTION lizellexs https://padlet.com/lizellexs/frras5zllpw8lll5/wish/2142757985 2022-04-13 17:34:46 UTC https://padlet.com/lizellexs/frras5zllpw8lll5/wish/2142757985 COMMON PRAC - SEPARATING SALT AND SAND lizellexs https://padlet.com/lizellexs/frras5zllpw8lll5/wish/2519987935 2023-03-16 20:52:49 UTC https://padlet.com/lizellexs/frras5zllpw8lll5/wish/2519987935 lizellexs https://padlet.com/lizellexs/frras5zllpw8lll5/wish/2947247782 2024-04-08 19:42:43 UTC https://padlet.com/lizellexs/frras5zllpw8lll5/wish/2947247782 SEPARATING LAB PRAC lizellexs https://padlet.com/lizellexs/frras5zllpw8lll5/wish/2956748984 2024-04-16 12:03:25 UTC https://padlet.com/lizellexs/frras5zllpw8lll5/wish/2956748984 CHROMATOGRAPHY lizellexs https://padlet.com/lizellexs/frras5zllpw8lll5/wish/3374614642 2025-03-20 08:47:55 UTC https://padlet.com/lizellexs/frras5zllpw8lll5/wish/3374614642 lizellexs https://padlet.com/lizellexs/frras5zllpw8lll5/wish/3381354248 2025-03-25 12:26:48 UTC https://padlet.com/lizellexs/frras5zllpw8lll5/wish/3381354248 https://youtu.be/7G4rlO2hA34 lizellexs https://padlet.com/lizellexs/frras5zllpw8lll5/wish/3381356030 2025-03-25 12:28:08 UTC https://padlet.com/lizellexs/frras5zllpw8lll5/wish/3381356030 https://youtu.be/mq_2WN0s6L0 lizellexs https://padlet.com/lizellexs/frras5zllpw8lll5/wish/3381356159 2025-03-25 12:28:14 UTC https://padlet.com/lizellexs/frras5zllpw8lll5/wish/3381356159 https://youtu.be/dggHWvFJ8Xs lizellexs https://padlet.com/lizellexs/frras5zllpw8lll5/wish/3381358382 2025-03-25 12:29:43 UTC https://padlet.com/lizellexs/frras5zllpw8lll5/wish/3381358382