Techniques
This separation technique is used to separate salt from salt and water
crystallisation
What can be described as a single substance not mixed with anything else
pure substance
When separating sand water the sand left in the funnel is called the?
residue
Why fractionating column is used in distillation?
to condense liquid at a more precise temperature
Can you use sieving to separate water and vinegar?
NO!
Sieving can mostly separate solids of different sizes
How do we separate sand and water?
Filteration
Air is a mixture of what?
nitrogen and oxygen (mostly)
The cooled vapor that condenses into a pure liquid during distillation is called the
distillate
How do we separate the seeds and pulp from the freshly squeezed orange juice?
Filtration
Pure water can be separated from sewage water using which technique
distillation/filtration
Sarah wants to separate alcohol from water, what she should use
fractional distillation
Which of the following is not considered to be a mixture: paint, saliva, blood, oxygen
oxygen
Fresh water can be obtained from sea water for safe drinking using which method
Simple distillation
The starting line of a chromatograph must be drawn with what?
Pencil
When our clothes are wet, how does it get dry
evaporation
David recently started working at Smirnoff and is making Absolute Vodka from a container of grape ethanol and water. Which technique will he use?
Fractional Distillation
what two things you can do to speed up dissolving?
Temperature, Shaking/Mixing
Which component do you expect to reach the condenser in the fractionating column during distillation. Is it toluene 110C or hexane 69C?
Hexane 69C
What is the name of the special piece of equipment used in distillation to cool the vapour to liquid?
Condenser
True or False
We cannot separate mixtures.
False!
Yes, we can with filtration, separation, and sieving!
George accidentally mixed sand and water, how to separate these?
Filtration
Amanda and Edward are both mixing lemonade. They use cheap powder and cannot dissolve more than 2 g per bottle. what kind of solution they get?
saturated
Which technique is used to separate out the components of a mixture by passing it in through a medium in which the components move at different rates.
Chromatography
How are the particles of a solid arranged?
Tightly packed together with little or no movement.
Name five separation techniques
chromatography, filtration, simple and fractional distillation, and crystallization`