♥ Thursday, October 30, 2008
EXPERIMENT - MAKING CRYSTALS !
Today after chemistry lessons selected students had been chosen to do some chem experiments.
Yippee ! i was there .
I partner with renping. After that yixia & xiuzhen come and join in.
It was quite fun making crystals.
Our aim is to prepare copper (II) chloride crystals using crystallization and evaporation to dryness.
on the left is using crystallisaion to form crystals.
On the right is using evaporation to dryness to form crystals.
crystals will start to form overnight.
--------Before boiling ----------After boiling
Using HCL .
Blogged @ 1:50 PM
