Qualification > Sciences
IG Chemistry Paper 3 discussion
chakrit_m:
--- Quote from: zara on June 01, 2009, 10:06:41 pm ---the ppr was f9 for me except the phosphate thingy....n maybe i must hv made sum other mistakes but dont realli remember.....neways its OVER n dats wat the reality is...wohoooo...no mor chemistry!!!!
n i guess p1 is nt dat hard...i mean nly selectin answers frm the list given....so u cn *inny meeny myna mo* the answers....lolzz....if ur nt gettin them .......atleast it wont go blank....n who knos ur *inny meeny mynamo* answers r rite.... :D :D :D
lollzzz....chill out guys!!!
--- End quote ---
It's actually nothing much. JUst look at how many times more the solution and simplify he formulae. My answer T(PO4)3
Jerry_LA:
yes!!
i wrote T3PO4
although i m not sure
thukon:
--- Quote from: susman on June 02, 2009, 01:22:31 am ---Ok guys
i guess 24 hours are up...
oh and mods are not here aswell so when they wake up 24 h will be over...
need answers...specifically of the follofwing question....
1)how would u explain the the sample contained cholorophyll?( iw rote carry another exp and then calculate the distance of the two dots.as pure cholorophyy wil make only one spt and the other one 2-3 so see the distance in which the dots appear and compare)
2) metal T
i wrote formula is t3(po4)2 because it is an insoulble salt(ionic) and gruop 1 metals make soluble salts thus group 2 is there
thus t3po42.,......hope this is correct?
3) the graph of ammnoina
it was inverse right and explanation was that as temp increases the endo one increases...
4) the question in which we had to show that the reacrion is exo...
the answer was like -30 or something...right?
5) the 2 gropus in the lactic one was alkanoic and alcohol...or alcohol or carboxylic?
6) the 2 advantage s of PLA was it can be recycled and it doesnt give fumes right???
need answers of these 6 question.....
plus its 4 am my paper was done 20 hours before
so i think mod can compensate 4 hours.:D
need answers..
thanks in advance
--- End quote ---
For ur 6th one, i did write its recyclable, or biodegradable, but HOW DID U GET THAT IT DOESNT GIVE OFF FUMES??? Where did u get that from?
I wrote thats its easily obtainable, since it comes from corn starch and not petroleum.
shafeeqshazana:
YEAY! :) i got that toooo
aquarian93:
my questions:
1) why do u wash the precipitate (i sed to remove impurities, dunno it its rite)
2) why do u put it in the oven ( i sed to get it in molten state)
3) exo thingi, wt did u guys get?
4) the source of nitrogen?
5) the adv of PLA
my chorophyll and Tphospate thing is rong :(
is pH meter correct By the way? i wrote that too :(
the first question was a drawing of chromatography experiment rite?
if 10-15 marks r gone, is it still an A/A*?
jeez, now this is making me depressed :(
lets discuss now guys, its time already!
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