running the race.

Monday, May 09, 2005

bump... back to blogging. well. i have a very interesting leader, don't i? haha.. only till today then i learn that mugging means ROB. haha. i didn't know that. well.. God has indeed been faithful to north C, hasn't he? Had a great time today while having meeting with the catholic high core team. Haha.. after meeting derick at pasta mania out of the blue, i am even more inspired to quickly see RI completed and soon we will start RC. that's so super cool lah. Well. i have a wonderful sheep that i know is close with God. How do it know? well. looking at his mentalitly and actions i got to say that he have grown over these few months. God i love you! =)

Gm/m-c-m/v

N=M/E

well. this is a venue for me to channle whatever i have studied today. haha. cool huh.
well time to make is a chemistry lesson.
sulphate is so4-2
Sulphite is so3-2
Sulphide is s-2
Carbonate- co3-2
Nitrate is - No3-
Phosphate- PO4-3
Ag-1
Zinc2+
Bromide- Br-

GM/M-C-M/V

N=M/E

recap:
Covalent is between non-metals and non-metals. It has low boiling point due to the fact that it has weaker intermolecular forces that held it together. It is non souble in water but souble in organic compound. It cannot conduct electricity. It is the sharing of electrons.
Ionic is between non-metals and meatls. It has high melting point as it's held by strong inter=molecular forces. we;;.. It canducts electricity as there is movement of ions. It's souble in water but not in organic compound. It's the giving and taking in of electrons.

Crystallsation.
The longer the evaporation takes place the larger the craystals and also apply gentle heat or it will over heat the crystal or it will damage crystal. Ermm.. It's done when the thing is a solution. yeah. ohh.. if it requires higher temperature change the water to oil and add sand bath.

chromatography:
Why should the slovent front be on top?
So that the whole process can be fully completed
Why bother to apply light ink?
Thus it will not move sideways and will not smurge with other inks.

Ammonia chloride, iodine can only be seprated through sublimation.

The moelcular realtive mass is the mass of an molecule in an substance compared to 1/12 of a carbon-12 atom..

ohh.. hydrogen sulphate is Hso4-1
hydrogen carbonate- Hco3-1

mole can be found:
Mass/ mr
Volume/24dm3
Particles/ 6x10^23

Concentration:
Number of moles= Volume(dm3)x concentration (mol/dm3)
Concentration(g/dm3)= Contration (mol/dm3) x MR

Simplify way for me:
GM/m-C-M/v

emprical formula:
Simplest ratio
Molecular formula:
N: molecular MR/ Emprical Mr
N(emprical)

N=M/E

GM/M-C-M/V

N=M/E

metallic bonding are surrounded by a sea of electrons.

till the end;11:06 PM