it's been a week. regarding my sister's matter, it went through somehow, though she still hasn't said anything about it, she seems alright now, thanks God. she's not finished yet, she still has to do the thesis of her project, wish her good luck.
my chemistry lab final exam is this saturday. it's just the theoretical part. I'm already done with the practical part, and thanks God, it went well I guess, though I did a very unexpected, stupid, shocking..(etc.) thing, I bet none out there had done such a thing before O~O", I don't think they discovered the crime I committed >~>" , well, I was prepared to admit it if that happened, but thankfully, it didn't _^_"...
the purpose of the experiment was to find the unknown-concentration of the acid by applying a titration between that acid (known volume) and a known-concentration base. from the titration we can get the volume of the base, and then we apply the equation: (M×V)acid=(M×V)base . we used some indicators like phenolphthalein to help us find the end point, the point where the color turn pink or disappears. a very simple experiment compared to the other one we had in the course.
the first thing you do before starting your experiment is washing the equipment you're about to use with distilled water, right?!
ok, now listen to what this silly girl did:
I looked at the bench in front of me. there were some distilled water bottles over it, the very small one attracted my eyes so I took it -don't ask me why- and started washing all my equipments with it. after I finished, leaving no single drop in that small bottle, I asked the teacher for the base NaOH (the one we used) to add it to my burette. as soon as the solution touched the burette it turned pink! which means that it wasn't clean, and only the phenolphthalein could do such a thing to a base! the teacher said that it could be because the previous group didn't wash their tools clean after they used them, and I agreed frowning my eyebrows, talking to my self, who was the stupid who put the ph.ph in the burette instead of putting it on the flask, and i was troubled cleaning the long tube with another -large this time- distilled water bottle... worrying about the exam time I'm wasting by redoing that..
did u guess what I did?... I bet you did _^_"
yeah, the one who did that was ME! and that little cute bottle contained ph.ph NOT distilled water @_@!
I figured that when I needed to add the indicator, and the bottle they brought me was just like the one I've just finished on cleaning the whole tools with!!
I froze for a moment, trying to understand the horrible thing I did, and when I came to my sense, I hurried up and re-clean the other things again, assuring my self : don't panic, girl! it's just an indicator and it won't affect the results! take a deep breath, just focus! you still didn't do the first round so hurry up and do it! (we had to re-do it three times to confirm the results) if they found about the empty bottle, be brave and confess >_<", other than that just be quiet and shut up, and complete your damn experiment properly ><"!!
thanks God, I got the concentration right, though I may not get the full mark. I hope they didn't find about the ph.ph accident >_>, it's a 25 marks!! and we had to fill just small 8 boxes in the results table we got , so I REALLY don't know how are they going to distribute such many marks on a very short simple exam!
I'm a little worried...
anyway, I have to focus on the remaining, and forget those I finished..
oh yeah, I just remembered this, our Physics club has a huge event that will be held in the start of next term -after summer vacation-..we're gonna represent the history line of the scientists who contributes to develop physics from the very old past till now! and guess what, there're customs!! yes, we're gonna cosplay =D! I'm soo excited!! I still didn't choose any scientist yet :( , I don't know who will be the best for me, I'll try to search for those whom I fully understand their achievements and works. unfortunately, all the famous ones have been taken (Albert Einstein, Newton) there's still Maxwell, though. but I don't like elctromagnatic that much, it was because of the #@$! doctor who gave us the course, I know it's a very important field, so I'll try to study the book (zamensky) again in the vacation. back to our main topic, does anyone know if there was some kind of quiz about scientists i could take, may be it'll help me get some ideas about the suitable scientist for me.. I'll try to search now.
I'll tell you when I figure it out :)
see ya another time, inshaallah <3.
wish me good luck!
------- [EDIT] --------
I've just done a funny quiz :D, Which Physics Thing Are You?
and I got this:
You are the String Theory. You are very random and spontaneous and just plain nuts. No one knowns what you will do next. You like to baffle people and confuse the heck out of those scientists. Haha, you love anamolies. Don't worry, so do I. ;)
(14 other people got this result! That's 41% )
hahaha, didn't expect it at all xD!try it out if you're interested, and tell me what you got :D!
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