3.6.05

58# NaOH, HCL, X2CO3, CO2...

58# NaOH, HCL, X2CO3, CO2...

We were well prepared.We did everything tat we could.We tried everyway. We screwed in the end... We were confidented enuf for the paper's ques. But to answer it is another story. Chemistry practical was just bad...
The first part was still ok. in order to prevent acid lost due to spraying effect as mentioned
in the ques paper, i used the spatula. A little by a little i added the X2CO3 into the acid. But there were still some spraying effect due to effervescence from the reaction of carbonate
compound with acid. Well, i couldnt help it. Just put as little in one time as possible.

I noticed tat ppl around me werent using the spatula. They poured in the compound from the tube into the acid in the flask slowly. Though the powder was poured slowly and carefully, but i think it was really insecure. So i started to make noise with the spatula and conical flask. I knocked the spatula at the mouth of the flask to put in the powder. I purposely knocked it with rythmn so tat ppl could see.Justin did saw me, but he continued pouring the powder without using the spatula. Yi feng did noticed but he still didnt use the spatula as i hope he did.

I did the 1st ques quite fast, i was the 2nd person who started the 2nd ques i think. Screwed the graph. I considered the delta t with negative values, shiet!Redrew the whole graph again took me damn long time. The ques was... my end point was 18cm3 of the acid.It couldnt be!! According to the mole of NaOH which was 0.0075moles, if the acid was 18cm3,
means the concentration of the acid was 4.17mole/dm3!! Wat the hack man... Therefore i couldnt do the following ques as i got negative value for the
molar mass of the X atom... Damn...
Actually i should answered though the Mr is negative.At least i can get marks for the error carry forward!!Shit i noticed tat after i was outside of the lab.I didnt dare to take the risk to write such insane answer... but errors do occur in experiment rite, so they expected us to give such stupid answers 1 la...

I skipped tat i did ques 3 as fast as i could. Luckily ques 3 was still ok. But i dun think all of my answers are correct la. At least i din leave it blank...

everyone was just damn tiu after the paper. Even yi feng who is a very gentle person also
couldnt stop from saying the word SHIT again and again... And wei jin was damn panas also...
Brandon got A A D for his AS and he managed to get an A overall.
Mmmm... at least no too bad la, got sample like him. But i dun expect i got A in my breakdown la...Me, speechless... Shall concentrate for paper 6, option...

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