Monday, July 18, 2005

Learn from mistakes...

There's bound to be mistake and errors made during experiment, especially when i am in kinda of Life Science course, i ought to know this. but somehow this particular experiment made me unable to accept the "misfortune" that we experieced. My lab partner and i can jollywell, hug and cry together...booo...

Lets start talking about the experiment that was done last week. (pardon me if u do not really understand certain terms..) Well, this experiements requires us to make a compound. After all the synthesis and stuff. we were supposed to do a vacuum filtration and dried the compound. Now i shall juz fast forward to the vacuum filtration step: my partner and i had done the experiment considering quite fast, the first team to reach that step. so we went on to do the filtration step. As we were unsure of whether our methods and steps are correct, we asked the teacher for help. Somehow or another, the teacher willingly stood up and help us to conduct the vacuum filtration step... well u might think isn't that great... the teacher is doing it for us... it must be damm accurate and perfect one.. But U R WRONG. hor....*grown* this teacher place two filter paper in the filter funnel, on the pump and started pouring our crystals+liquid into the funnel and guess what... the filter paper broke into many holes! ok nvm about that... small mistake made... then since the filter paper broke... we added another two filter paper below it... on the pump and she started pouring.. guess wat! the filter broke again.. this time... my lab partner and i nearly fainted... As so much of our compound when into the filter flask... How are we suppose to retrieve back... argh... then when added another filter paper... yea... it tear again.. but wth... we almost filter everything already. so nvm about the pump... lousy pump, the pressure/ suction was so high...

well, my lab partner and i really looked hard at the teacher... omg... argh... along the filtration step, she said that she already knew that the pump pressure was high... then y didn't let us know or change another pump or use another method to filter... argh... damm lo... gotta use almost 5 filter paper... and the filter paper not those normal one lo, is almost twice thicker than normal... still tear... haix... well, in the end, my partner and i could do nothing but to make a pact tt we shall nv let the teacher do the filtration step for us ever again. we shall do it ourselves... even if we made mistake we shall bang each other heads... hahaha and also nv be guinea pigs to test out things ...haha in the end other groups nv had much error with the steps... coz they used more than 1 filter paper.

ok, now my partner and i really have to bang each other head, not because today we did our experiment wrongly. its because, we let history repeats itself... ARGHHHH. After making the pact that we shall nv let the teacher touch the filtration step again, this time we decided to take the vacuum filtration step into our own hands... we did the very basic steps that other lecturer had taught us... on the pump, wet the filter paper and start pouring the filtrate... everything went on smoothly... we started pouring bits of our crystals out... so happy for ourselves...

Then came the bOo Boo again... teacher came over and said.. "no, u all shld pour everthing in..." she took the flask from us and pour into the funnel.. "Pa" the filter paper BROKE!!! this time the spilage is worse. it spill out onto my hands and glove... wth!!!! ARGH , experiment ruin again. our compound from last week was quite pure. this week the same compound after re-crystallsation became impure. very impure... haix... there is nothing i can say.. simply haix...

there is no personal attacks meant to be made of that lecturer... mean no harm but... i was Juz a lil disappointed with the kind of error we made... however, what is done is done... juz have to learn from mistake tts all... haha tts wat experiment is all about.. isn't it?


nv be deceive by ur own eyes. this substance which look so white... is not that pure at all...hahaha