Chemistry paper 3 oct/nov 2012

[Iffat]

How was it??

 

[yentaokia]

Bad, i lost around 10 marks. There's suppose to be 3 gases present- hydrogen, ammonia, carbon dioxide. But i only wrote CO2, so... yea no more A*

 

[Iffat]

which paper did u ryt p31 or 32??
coz in 31 there was no CO2 n besides they didnt even give ny limewater 2 test for Co2. i got ammonia n for one of them i wasnt sure whether 2 ryt H2 or O2 coz both the tests wer positive but i jus rote O2 coz we had 2 add hydrogen peroxide.

 

[yentaokia]

Mine is 32

 

[Iffat]

oh k but isnt it the same sumtyms? wat did u haf in d 1st question? What was the titration?

 

[yentaokia]

I don't think it's the same. Titration is about the reaction between an unknown metal carbonate with H2SO4.

 

[Iffat]

k ours was diff