As usual, I have Chemistry practical experiments in Chemistry lessons.
And I was scolded thrice, My own life record. HAHA!
1st. I didn't do what he told, to add distilled water to the PbCl2 solution,
I was told, "Can't follow instructions!"
And then, I felt shocked but later take it easy, as I experienced that before.
2nd. I intend to light up the Bunsen burner just at the table in front of him,
Before I could do that, he stopped me and asked me to do it in front of him,
and I did what he asked.
I half-way to success, but because out of nervousness, I turned the knob clockwise and scolded once again. "Anticlockwiselah, aunty!"
As before, I was called Aunty Yi Ling by teacher, Yup! By TEACHER...
Unbelievable....
Haiz! Finally I managed to light it up.
But I failed one of the experiment of cations test. Golden shiny yellow PbCl2 unable to dissolve completely in the solution. During cooling process, I accidently dropped the test tube. Luckily it doesn't broke. I kept asking Jian Liang whether did Mr.Lim noticed.
Phew! He heard the sound, as far as I guessed, and he didn't check out what happened.
3rd. Under my 4B's friend advice, I put a little amount of Pb2+ & KI. And again, I asked Kian Guan for confirmatory of the volume needed. He requested me to ask teacher as he does. And there, I asked, "Is this amount of solutions enough?" as I show him the solutions. He asked me whether I heated the solutions already or not?", I replied no, teacher said,"Go and heatlah, what are you waiting for?". I then go on for the process of heating. I went back to my table, and I found the Bunsen burner has been occupied by others. I looked around and saw the Bunsen burner near teacher can be used, I went there quickly without thinking much. I heated the solutions until they dissolve completely. What I didn't realised is, teacher is watching. He say," Hey, Hey, stop heating." I didn't know he was taking to me, and I put away the test tube as soon as I realised. I saw he turned around to witness my production of PbCl2 that soluble in hot water, but not in cold water. I told him,"But it is still hot." What is most surprised me is Mr.Lim's reaction as I looked at him, he smiled and noded with his closed eyes. I did obeyed his instructions to cool it but I kept thinking about his smile. He asked me to shake it, I at first shake it but I off the tap, I later think again that it is not a wise move. I turned on the tap again, and shake the solutions occasionally. He later asked me,"Is there any precipitate coming out?", I checked, and I said yes. When he saw this, he made up his mind and asked my fellow classmates to pour no distilled water before letting PbCl2 to be heated. This is to allow dissolving process can be occured easily.
Sometimes, study Chemistry in Mr.Lim's class really make people heart attack... As he would scold NO BRAIN in English and Tamil, DIDN'T FOLLOW INSTRUCTIONS,.......
And I got used to that, haha!
Smile to Chemistry and life!
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