stupid karma, drop drop drop..

tired tired tired.

going to burn the midnight oil tonight for my homework!

go off to watch my videos now. See ya later ;D

im back!!

goodnight plurkers~!

Avogadro's Number is so annoying >.<

i am tired la. Dont want to study le. Time for videos ;D

to find the no. of mole,you need to have the sample mass. (translate: 如果要找有几颗痔，你需要有它的重量。) LOLno link! ;D