reflux, distillation, fractional distillation

Question 1

What is reflux?

Answer 1

= allows complete reaction
= volatile reactants, heated and evaporated, the condensor on top cools down the vapour
= reactants re-enter the pear shaped flask continues to react
= orange to green has finished
= seperate using distillation

Question 2

What do anti bumping granulles do?

Answer 2

= absorbs energy
= smooth boiling

Question 3

Where does water move in and out?

Answer 3

= at the bottom
= out from the top
=

Question 4

What is at the top of the condensor?

Answer 4

= open non sealed top
= where reactabts are added
`

Question 5

Why should the top of the funnel never sealed?

Answer 5

= prevents building pressure

Question 6

What is distillation?

Answer 6

= used to seperate 2 liquids
= prevent completion

= reagants are gently heated to boiling point of one of the desired products
= vaporizes whilst others remains in flask
= condenses through a condensor, back into a liqud at a seperate flask

Question 7

Why do we need a therometer?

Answer 7

= measures temperature of vapour at the entrance of the condensor

Question 8

Why does the beaker and flasj containing the distilled is in a water bath with ice?

Answer 8

= keep liquid
= prevent evaporation