Tuesday, May 19, 2009

Long Day Ahead

Wake UP! Chemistry Practical...!!!
*yawn*
Went to library around 8.30am. Jason Tong, John Bong and I gathered at Simon's Square (a small room where our favourite Chemistry teacher, Mr. Simon Lai can be found). Having done our (last minute) revision, we headed off to the laboratory. Most of the students were already there. I saw CT. He-he...

Chemistry Lab 1: Me, next to Voon Hui (Lower 6).
I estimated every question must finished within 40 mins.

The Experiment: Cu2+ diluted, KI, Na2S2O3, HCl.
Q1. Cappucino Test. Dark dirty brown turns pale brown, then add 10 drops of starch. UNTIL blue-black coloration disappear. (END POINT).
I was really clumsy for this question! Spilled solutions everywhere. And no freaking space!
Q2. Rate of reaction. Sulfur, yellow ppt formed and time for that to happened. (Here, I managed to get extra 10 mins to finish up my calculation for Q1. Honesly, i was really rushing.)
Q3. Analysis. Ions present: Pb2+, Mg2+, Chromate, Nitrite and Sulphate. How to test? Refer the paper they gave you. =D

Washed the apparatus, straight went to lunch! No, the day doesn't end here. There are still 16 papers waiting for me. After lunch, prayed, took a nap then (lazily) went to library again. Physics 2 and 5 Revision-athon. Managed to get some information glued to my brain. InsyAllah i can answer Paper 2 and Paper 5. Amin.

PS: Pray for my success!

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