Upload
virgil-snow
View
213
Download
1
Embed Size (px)
Citation preview
Separation Techniques
QUIZ Questions
Which technique can be used to separate 2 liquids with different boiling points?
Distillation
1
Which liquid, water or alcohol, has a lower boiling point (and boils first)?
Alcohol
2
Which technique separates substances based on how well they dissolve in a particular solvent?
Chromatography
3
In felt-tip pen chromatography which colour of pen was actually a mixture of the MOST colours of ink?
Black
4
In the diagram below which spot was most soluble (i.e. dissolved best) in the solvent?
Spot A
5
x
Spot A
Spot B
Spot C
x
Spot A
Spot B
Spot C
In chromatography of biro pen ink which solvent was best to carry the ink up the paper?
Meths
6
What do we call a substance that cannot dissolve in a solvent?
Insoluble
7
Which technique can be used to separate an insoluble solid from a liquid?
Filtration
8
Which technique can be used to separate a soluble solid from the liquid it is dissolved in?
Evaporation
9
Put the following 6 steps for separating sand and salt into the correct order
A Heat filtrate to evaporate off the solvent (water)
10
C Filter to remove the insoluble sand
B Pour salt water filtrate into an evaporating basin
on a tripod over a Bunsen burner
D Place the sand/salt mixture into a beaker and
add waterE Allow basin to cool & collect salt
F Stir to allow the salt to dissolve in the water
D F C B A E