pag skills Flashcards
1
Q
how to reduce percentage error
A
use more mass of reactant or more temperature
2
Q
apparatus for 1 bromobutane with butan1ol and sulfuric acid and sodium bromide
A
use a pear shaped flask and a heat source
use a condensor water flows bottom to top
use a separating funnel to separate organic and aqueous layers
collect lower organic layer as it has a greater density
dry with anhydrous salt
redistil
3
Q
to get more accutae results for gas syringe
A
heat until syringe stops moving
wait until gas has cooled
4
Q
to make combustion pag more accurate
A
use a lid on calorimeter
stir to distribute heat easily
5
Q
how to prove purity
A
recrystallise
6
Q
TLC
A
shows if product made but doesnt show purity also the longer the paper the higher the resolution so more accuarate
