Discuss Chem P42 !!

[Sandy]

I wrote the structure was hexagonal with six carbon carbon atoms that are sp2 hybridized...and i wrote about the (pi) electron cloud density above and below the plane...

 

[Tani]

This had to be THE MOST HORRIBLE PAPER IN HISTORY!!! I so so so hope threshold in belo 60 I mean what bullcrap yeah? Organic was bakwaaas....actually, the whole paper was bakwaaas. Thank god paper 5 had been good.

 

[XWTBSILT]

Paper was tough
but for the ones i wrote im sure

Hope the thresold are low :!:

 

[etcetraetcetra]

okie my enthalpy changes of solu were both positive and one of them was 500 something the lattice energy i took to be negative according to the formula and for the inert electrodes i said platinum

 

[TeeJay]

I also got enthalpy of sol in 500 sumthing but now i realize that to OH ions were being hydrated so u had to multiply dat by 2! PAPER WAS HORRIBLE!

 

[uofoe]

pepl da thin dah most m8rs is k v ol get n a* or a or atleast b.....noh lesser....
btw how did u fwnd d molecular formula?
till last minute i tried on dah n wox able 2 luckily get 2 fragments..
at r center aswell evry1 wox lyk "ehhhhh"
wish u ol d best wth rexlt!!!!

 

[Kaer123]

hey for the q1 in wich we had to distinguish between phenyl alanine and acyl chloride could we have used water?acyl has more vigorous reaction

 

[sse2010]

we had to use water, it was written in the question

 

[Shafaque]

yeah it is but we had to write a WAY of distinguishing both of them

HCL is emitted as a gas right

 

[x+y=z]

ppl who got enthalpies around 500 used the enthalpy for OH ions only once in their calculations .The formula was M(OH)2 so u had to use it 2 times.. but i did it rite phew

 

[Bilawal]

well HCLaq produced____ and final change in pH measured using pH meter___against tim :roll:

 

[Jazib]

ppl who got enthalpies around 500 used the enthalpy for OH ions only once in their calculations .The formula was M(OH)2 so u had to use it 2 times.. but i did it rite phew

will only deduct 2 marks for this!

 

[Shafaque]

btw
the order of reaction was 1-1
or 0-1 ?

 

[mak]

1-1