Saturday, April 25, 2009

Experiment on Thursday

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..


If Miss Koh see this, wat will happen next? luckily our chem teacher is Pn Vanaja...


Almost done...(looks like cappucino lah.. feel like want to drink it)..

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