synthetic techniques

Question 1

Purifying an Organic Solid (Recrystallisation)

Answer 1

-Dissolve solid in minimum volume of hot solvent

-Cool in ice bath and filter under recued pressure

-Wash and leave crystals to dry

Question 2

Purifying an Organic Liquid

Answer 2

-Place is separating funnel and allow two layers to form

-Tap off bottom layer (highest density liquid)

-Add anhydrous MgSO4 as drying agent

-Distil mixture to obtain pure liquid

Question 3

Buchner filtration equipment

Answer 3

buchner funnel
moist filter paper
porous plate
buchner flask
filtrate (liquid)
rubber tubing
partial vaccum created