Thursday experiment is want us to determine the percentage of aluminium in sample X by means of the preparation of a complex compound of aluminium 8-hydoxyquinoline.
I m very happy that i got a chance to use a magnetic stirrer.. However, my group was the last group to finsih the experiment because v oni hav 3 stirrer for 4 groups...
In the end of experiment, u will get a powder form of aluminium 8-hydoxyquinoline(yellow in colour)...
This is the magnetic stirrer....
while stirring--need to wait for 30 min to get the precipitate..
This is a group of 'ke po'= 'busy body' students gather there to 'play' the stirrer using water...Stef is the leader of these bad students...haha..
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