Seperation Methods (physical)

Question 0

Distillation

Answer 0

Used to seperate a solute from its solvent (used to speperare parts of a SOLUTION)
If solute is solid it will be left in the boiling flask
For liquid-liquid solutions that are miscible the liquid with the lower boilin point will boil first and be collected in the distilled flask

Question 1

Gravity

Answer 1

• Used to seperate liquid - solid HETROGENOUS mixtures

- liquid flows through filter paper, solid caught by paper

Question 2

Solvent extraction

Answer 2

Used to seperate 2 liquids that do not mix

-opening the stock cock will allow the bottom layer to drain out

Question 3

Recrystalization

Answer 3

Used to purify a crystalline solid (seperate impurities and crystal)

Dissolve the impure crystal in a solvent by heating, cool
Allowing to reform

Question 4

Chromatography

Answer 4

Can be used to seperate dif. solutes/ions in a solution

Question 5

Centrifugation

Answer 5

The use of a centrifuge can seperate the components of COLLOIDS or SUSPENSIONS

Question 6

Matter

Answer 6

Anything with mass and volume

Question 7

Homogenous

Answer 7

Same composition throughout

Question 8

HETROGENOUS

Answer 8

Not the same composition throughout

Question 9

Solutions

Answer 9

• homogenous
• made up of solute and solvent

Key indicator : solutions are clear

Ex. Salt water, apple juice wine

Question 10

Colloids

Answer 10

Ex milk

Like solutions but not clear because the size of the solute particles are larger than in solutions

Question 11

Mechanical

Answer 11

HETROGENOUS
Ex. Sand, party pack of chips, salad

Generally solid - solid mixtures
Can seperate by hand

Question 12

Suspensions

Answer 12

HETROGENOUS
Ex mud orange juice with pulp

Over time the solid will seperate from liquid