today was a practical lesson :). it gets quite fun - i keep challenging myself to be as efficient as possible and not admire just 1 set of results :P.

so...for the lesson, Ms. Jee revised through our VA1. i couldn't answer the questions on the last page - and neither could some in the class - so she went through them. apparently in our SPAs we have to keep an observant eye, especially for deliberate errors that the examiners make us face. Even a slight decimal round-up/down can cause us major disturbances in the exam. Burettes are measured to 2 decimal places, while pipettes are measured to just 1. dammit REMEMBER -.-

So after all that we started VA2 :). I tried to be as patient as possible and to do the titration drop by drop and today, i'm glad, was a success. no more failures, PLEASE. :)

till next class, toodles!

god save the ruler(hafidz)!

yesterday's lesson was about the atomic structure - i totally forgot to make my own notes, but luckily though i understood what Mr. Tan taught us. 

ooohoooh number of shells is now Principal Quantum Shell. ^^

Basically sub-shells are 3D shells WITHIN shells, where electrons can be found around 95% of the time. The 5% accounts for electrons that may have escaped the sub-shell, but Mr. Tan said that we would be focusing on stuff INSIDE the sub-shell, rather than outside.
We learnt 2 sub-shells in detail, although there are 4 to be learnt - s, p, d &&&& f

S orbitals are spherical in shape and appear like ya know in...1s 

P orbitals exist in 3s - Px, Py & Pz. Uhh i think it's because they lie on their respective axes - x, y & z. They look like dumbells (weirdo chemistry >.>). They only appear on shells after the first shell, as shell #1 is used for S sub-shells. 

gotta complete tutorial 3 too.

:)

Another assignment is to figure out what career I want to pursue.

As for this mind-numbing question, I have no answer. I am not sure, and I don't want to make any hasty decisions just yet as I think i'm just not old enough. I'm just focused on doing my best for my A levels and then making my decision. 

scatter.

Strengths/Weaknesses In Chemistry

I'll start with my STRENGTHS :)

The most probable MAJOR reason i decided to take Chemistry as a course was because I was most interested in it. At the time (I decided to take Chemistry at Grade 7) Chemistry was really easy - mostly because it was only the really easy stuff, such as the basics of the Reactivity Series and Earth Chemistry. I also used to think that it would be fun making explosions in the lab :P. My strength used to be Transition metals, but i think that Organic Chemistry - excluding polymers - is where I am strongest now.

And now my WEAKNESSES :(

I'll start with what contradicts with my first strength, i.e. - Chemistry gets tougher as the basic years go by. I was naíve back then, and I thought it would all be easy. I am probably weakest at the Mole Concept.

studying the mole concept now.

extremely weak at this topic, will have to pay very close attention >.<. the very 'concept' of moles just scares me. remembering the toughness of all the times iad to figure out where goes where comes back.

today's lesson was very quiet. a little...too quiet. people were actually lost during the tutorial. 

SI units again...not much to learn except those giga, mega etc. prefix indices. they never stick on my mind. in any case, i just gotta prepare for the real part of moles. cos it would be then that i would be really...lost.