Wednesday, January 30, 2008


That was fun...the trip to Anderson Junior College...alvin, pin dong and i were a group...we went to the bio lab first for our activity...there, i had absolutely no idea of what exactly to do...i don't take bio and yet i am here, doing a biology experiment to extract friut and vegetables DNA...its cool...the DNA to our naked eye would look like tiny bubbles forming after adding a few chamicals...its a pricess between long and short...but its fun...thanks to our facilitator vivian for the aid..next up...literally as it is on the 4th floor...chemistry...haha...we were doing the extraction of acetyl eugenol...i paired with pindong for this...we were supposed to wear gloves as it is a bit messy...we encountered some problems...which happened 2 or 3 times...the first was the separating funnel...our first one we greased and put it back...we tightened it and...it was stuck...could not turn...and we changed another one...the next one worked better off...we poured the clove oil in, and the harmful chemical...dichloromethane...i held the funnel steady while pindong poured it in...soon enough, i found myself with my gloves poured wif it...oh ya...dichloromethane is carcinogenic...aka...causes cancer...ya...i was struck with dumb luck...nvm abt that...i dun blame him...then, we added the NaOH into the mixture before...shook it...in the wrong way...we were show de correct way which is to put it on its side on ur hands and shake it...then, when we put it upright, it began to leak...and we had to change the funnel....for the third time...our facilitator was scared of us and watched our every move carefully...the third one nearly did not work but it did in the end...we were supposed to drain out the organic layer at the bottom of the funnel...we did, poured the aqueous layer[yellow] away...and poured the drained layer back...we drained it again and made a mistake of not adding NaOH again...we did the process again...and at the third time, our NaOH ran out...and we had to ask for more...we managed to get it done......thanks to our caring facilitator yi jia..its a long process but its fun...there is more to that but i'm too lazy...haha...the chem teacher who instructed us was somewhat similar to mrs teo...wierd...alvin was wondering if both of them were sisters...and the remaining chemicals were discarded...but mrs teo would say not to waste it...we made fun of that as its too funny...well...its fun at AJC...more experiences to come...cheers

for the knight Wednesday, January 30, 2008