Qualification > Sciences

ALL CIE CHEMISTRY DOUBTS HERE !!

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aldehyde1612:
I do NOT understand mass spectrometry and that resonance thing??
can someone explain? .. like how we're supposed to do question 3.d. from May 2010 p42.
ANY helps appreciated.


***Thanks for the overwhelming amount of help you guys gave. lol jokes. i figured it out myself.

TJ-56:
Ok I have another question regarding the E(cell) topic.
In October November 2005 Paper 4 Question 3 (c) (i): I got the H2O2 part, but not the KI. How do we know which to use: the K+ or I- half equation? This may be silly, but I am a bit confused :S
Thanx in  adv

da_rockstar:
guys can anyone explain why whether fluorinated compounds are hydrophobic or hydrophilic?
cuz i was going through the application booklet...and i saw in oil slick part that they use fluorinated molecules to repel water and absorb oil in sorbent boom.
but i had doubts over it since as far as i remember fluorine forms the strongest hydrogen bonds doesn't it?

leebux101:
URGENT
for those who are doing A2 this year, do we have to revise the AS stuff as well???

Arthur Bon Zavi:

--- Quote from: leebux101 on May 21, 2011, 10:01:10 pm ---URGENT
for those who are doing A2 this year, do we have to revise the AS stuff as well???

--- End quote ---

Definitely.

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