Distillation

Distillation is used to separate ______.

• a liquid from its solution.

• an insoluble solid from its solution.

• a soluble solid from its solution.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Distillation is made up of ___.

• evaporation, then condensation

• condensation, then evaporation

• boiling, then condensation

• condensation, then boiling

Tags

NGSS.MS-PS1-4

What is 5?

• cooling tube

• condenser

• distillate

• water pump

What is 6 and 7?

• 6: water in / 7: water out

• 6: water out / 7: water in

What is 8?

• distillate

• filtrate

• residue

• solute

Porcelain chips are added to 15. Why?

• to raise the water level higher

• to increase the boiling point of the mixture

• ensure smooth boiling of the mixture

• to be dissolved in the mixture

A mixture of water (b.p. 100^oC) and alcohol (b.p. 78^oC) is separated. Which will be found in 8 first?

• water

• ethanol

A mixture of water and alcohol is separated. What is the reading on the thermometer at the end of the experiment?

• below 78^oC

• 78^oC exactly

• 78^oC to 100^oC

• 100^oC exactly

What is the function of 3?

• prevents air from entering the flask

• provides a large surface area for hot vapour to condense

• blocks hot vapour from escaping

• collects the distillate

Bonus: What is the name of apparatus 2?

• conical flask

• flat-bottom flask

• round-bottom flask

• long-neck flask

• wide-neck flask