{SOMWHERE OVER THE RAINBOW}.
Thursday, March 20, 2008
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I screwed up my chemistry SPA!! **scream and run around**

Before the practical, everyone said it was easy. I thought it would be somewhat like mock spa. But it turned out to be very different.

That's why it is difficult.

But then again. It is just like any typical redox titration. Even the oxidising agent (potassium maganate) is the same as the mock spa. You dont even have to think about the experimental error. You just got to memorise.

So it should be manageable.

But some how some how, i screwed it up and so going to fail. The solution in my cornical flasks were supposed to be purple after the titration. Well, or rather light pink. i got a light purple, but somewhat like pink also. Aiya, the typical colour everyone got. (see that's the good thing about having the last index number of the class, you get to sit behind and see every one's work =)! I didnt pour away the solution in the cornical flask after titration, because it is such a waste of time. I did my mole calculation.Halfway, Mrs Chan came. She said something like is this your first titration. I turned my head. Guess what. The solution in the cornical flask was brown instead of purple!! The other bottle was alright.I wanted to redo my titration but not enough time.

Mrs Chan refuse to tell me what went wrong. Sealed her mouth so tight. I am like the only one with a brown solution in the flask. So odd. Ahhh!!!! It's o level and i did something so wonderful.

eh wait. Can that solution undergo oxidation after titration?! But how come i am the only one with that colour. Ah, i really dont know what went wrong.

10:16 PM;

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