paper 2 keys

Question 1

synthesis of organic liquid

Answer 1

transfer mixture to separating funnel
add caco3 to get neutralise any remaining acid
allow layers to settle
density greater than 1 organic layer is bottom layer
allow bottom organic layer to run out
add drying agent - anhydrous cacl2 to get rid of any leftover water
distil dried product, collect fraction that boils at specified temperature.

Question 2

Synthesis of organic solid

Answer 2

Recrystallisation
dissolve in minimum amount of hot solvent
cool in ice
filter via buchner apparatus
wash with cold solvent
dry

Question 3

if separate when stationary phase is solid what is sep called

Answer 3

relative adsorbance

Question 4

if separate when stationary phase is liquid what is sep

Answer 4

seperate by relative solubility