too tired yesterday
didnt hav time to update also..
having chem experiment yesterday
electrolysis
didnt hav time to update also..
having chem experiment yesterday
electrolysis
tis is sodium chloride
if not mistaken
did the wrong step..but i think we get the result for it..
I THINK
wooden splinter didnt extinguish with "pop" but it still extinguished
hmm..half success?
n then we continue wit copper(ii) sulphate
first we used the electrolytic cell
the battery doesnt seems working out..
after i adjusted for a long long time
finally we saw some bubbles forming..
becauz the process is slow..so we used another way to proceed tis experiment
oxygen at anode
copper at cathode
the brown thingy is copper
oxygen at anode
copper at cathode
the brown thingy is copper
next is potassium chloride
ran out of time
but we still made it to finish half of the experiment
heh
colourless solution turn into yellowish (green-yellowish) solution
after that went for physics
mood down..
cant solve all problems..
problems occur one n one
keep looking for teacher
but he's not there..
everything delayed..
im such a failure..
really didnt hav any mood for doing anything after schul
mood turned better after going old town
tuition until night
so so tired..
exhausted..
play osu a while then went to bed..
tats all for 23.07.09
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