IGCSE/GCSE/O & A Level/IB/University Student Forum

Qualification => Subject Doubts => GCE AS & A2 Level => Sciences => Topic started by: abdullahnisar2005 on May 19, 2010, 07:00:12 pm

Title: AS CHEMISTRY PAPER 33
Post by: abdullahnisar2005 on May 19, 2010, 07:00:12 pm
Any news about as chemistry practical paper 33?
Title: Re: AS CHEMISTRY PAPER 33
Post by: Saladin on May 19, 2010, 07:31:33 pm
Any news about as chemistry practical paper 33?

Do not share any exam information. AT ALL.

Disclosure of exam content will result in permanent ban.
Title: Re: AS CHEMISTRY PAPER 33
Post by: mista.lova.lova on May 19, 2010, 09:20:32 pm
@mod:  cool man...chillax... ;)

har waqt warning dena ka kya faida?? :D:D
Title: Re: AS CHEMISTRY PAPER 33
Post by: MistahNobodeh on May 19, 2010, 11:38:07 pm
Ok has this whole forum actually become a Pakistani forum??? All Mods r Pakistani??
ANTT YAAR!!!!
Shouldn't have stayed away from the forum for the whole year huh??
Title: Re: AS CHEMISTRY PAPER 33
Post by: superduper2009 on May 20, 2010, 01:34:03 am
how do u differentiate between aluminum and lead ions???
how do u differentiate between ketones and aldehydes???
how do u differentiate between the halogens???
how do u differentiate between sulfates and sulfites???
How do u test for carboxylic acids...
how do u test for alkanes and alkenes?
thanks in advance :D
Title: Re: AS CHEMISTRY PAPER 33
Post by: forkasha on May 20, 2010, 02:43:10 am
Quote
how do u differentiate between aluminum and lead ions???
how do u differentiate between ketones and aldehydes???
how do u differentiate between the halogens???
how do u differentiate between sulfates and sulfites???
How do u test for carboxylic acids...
how do u test for alkanes and alkenes?
here is the answer
1.by using chromate it gives ppt with lead and clear solution with aluminum
2.tollens and 2,4-dinitoro..........
3.don't know ???
4.written in the last paper of the exam
5.don't know ???
6.don't know ???
that's all wat i know i wish i have helped and if u have ask me i me and i will  to best to answer
oh ur welcome :) :) :) :)
goooooooooooooooooooooooooooooooooooodddddddddddddddddddddddddddddd luuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuccccccccccccccck 2 all of us ;) ;) ;)
Title: Re: AS CHEMISTRY PAPER 33
Post by: islu_jf on May 20, 2010, 06:06:39 am
how do u differentiate between aluminum and lead ions???
how do u differentiate between ketones and aldehydes???
how do u differentiate between the halogens???
how do u differentiate between sulfates and sulfites???
How do u test for carboxylic acids...
how do u test for alkanes and alkenes?
thanks in advance :D

for carboxylic acids .. add metal carbonate and CO2 wil be produced// test with lime water//

for the last one.. add bromine water... the alkane will stay a brown solution bt the alkenes will change to a colourless..bcoz of the double bond!! ..
Title: Re: AS CHEMISTRY PAPER 33
Post by: superduper2009 on May 20, 2010, 06:09:08 am
Thanks to every1 who replied...
I'm "going in" after a few hrs....
lets see how the paper goes :S :D
Title: Re: AS CHEMISTRY PAPER 33
Post by: XaM!! on May 20, 2010, 06:16:53 am
@mista haha lage raho... apni zabaan me baate karu inku samaj hi nhi ayegi. lol
Title: Re: AS CHEMISTRY PAPER 33
Post by: IGCSE nightmare on May 20, 2010, 10:03:09 am
I did mine!
I am not intending to discuss but are personal messages allowed between who are done with the exam?
Title: Re: AS CHEMISTRY PAPER 33
Post by: Nobody on May 20, 2010, 10:26:20 am
@mista haha lage raho... apni zabaan me baate karu inku samaj hi nhi ayegi. lol

Anise bolneka kya matlab jab Moderatoers ko bhe vo samaj aata ho..? 8)

Quote
Do not share any exam information. AT ALL.

Disclosure of exam content will result in permanent ban.
  ;)

Discuss about it after 24 hours.. :)

Title: chem p33
Post by: ketone on May 20, 2010, 12:11:25 pm
heard abt chem p33. was easy but lengthy..............
Title: How did the chemistry practical p33 go with u people?
Post by: ahmedkeda on May 20, 2010, 12:13:52 pm
the graph was weird...
but identifying the cations was easy..
finding the enthalpy change many guyz got different values...
so overall i think the paper was a litlle bit hard...


SO HOW DID U GUYZ DO
  ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ???
                 ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ???
                        ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ???
                              ??? ??? ??? ??? ??? ??? ??? ??? ??
                                    ??? ??? ??? ??? ??? ???
                                           ??? ??? ???
                                              ??? ???
                                                 ???
Title: Re: How did the chemistry practical p33 go with u people?
Post by: sabrina on May 20, 2010, 12:17:11 pm
the graph was weird...
but identifying the cations was easy..
finding the enthalpy change many guyz got different values...
so overall i think the paper was a litlle bit hard...


SO HOW DID U GUYZ DO
  ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ???
                 ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ???
                        ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ???
                              ??? ??? ??? ??? ??? ??? ??? ??? ??
                                    ??? ??? ??? ??? ??? ???
                                           ??? ??? ???
                                              ??? ???
                                                 ???

u must be out of ur mind. it was not little bit hard, it was veryyyyyyyyyyyyyyyy hard and plus i didnt get time to do all the first questions. i m really sad :'( :'( :'( :'( :'(
Title: Re: AS CHEMISTRY PAPER 33
Post by: piggydiggy on May 20, 2010, 12:17:53 pm
ooooh paper 32 is the worseee, i studied really hard for titration and it didnt come the titration thing... and suddenly the people from cambridge POP out of nowhere..  :-[
Title: Re: AS CHEMISTRY PAPER 33
Post by: Nobody on May 20, 2010, 12:28:00 pm
ohh! :D :D found it funny..

people from CIE came in your school!..you were cheating..? planned to?
Title: Re: AS CHEMISTRY PAPER 33
Post by: sabrina on May 20, 2010, 12:32:28 pm
ohh! :D :D found it funny..

people from CIE came in your school!..you were cheating..? planned to?
WHAT? sorry didnt get that ???
Title: Re: AS CHEMISTRY PAPER 33
Post by: piggydiggy on May 20, 2010, 12:33:03 pm
no its not that we gonna cheat but it makes me anxious with the lady who came there.. and i wrote wrong thing.. i took the chem 33, and its suckss.. argh!
Title: Re: AS CHEMISTRY PAPER 33
Post by: sabrina on May 20, 2010, 12:35:08 pm
ooooh paper 32 is the worseee, i studied really hard for titration and it didnt come the titration thing... and suddenly the people from cambridge POP out of nowhere..  :-[
that was bad. hope the threshold goes really low
Title: Re: chem p33
Post by: sabrina on May 20, 2010, 12:49:48 pm
heard abt chem p33. was easy but lengthy..............
ketone u must be out of ur mind. it was easy??? it was really hard. all night i was praying that titration doesnt comes (its hard for me) but after seeing the p33 i badly needed the titrations questions.
why the cie people have to make the paper very hard? >:(
Title: Re: AS CHEMISTRY PAPER 33
Post by: piggydiggy on May 20, 2010, 12:53:12 pm
yeaah i hope soo, how's urs? good? :)
Title: Re: AS CHEMISTRY PAPER 33
Post by: XaM!! on May 20, 2010, 12:55:15 pm
@nobody kher hai yar bachu ku parhne du... thori cheat tu chalti hai lol ;)
Kidin
Title: Re: AS CHEMISTRY PAPER 33
Post by: Nobody on May 20, 2010, 01:16:06 pm
@nobody kher hai yar bachu ku parhne du... thori cheat tu chalti hai lol ;)
Kidin

Yaha pe cheating NAHI CALTI! paper kal disscuss karna...okay! ;)

WHAT? sorry didnt get that ???

i was laughing at this, specially "cambridge POP out of nowhere.."

ooooh paper 32 is the worseee, i studied really hard for titration and it didnt come the titration thing... and suddenly the people from cambridge POP out of nowhere..  :-[
Title: Re: AS CHEMISTRY PAPER 33
Post by: XaM!! on May 20, 2010, 01:18:41 pm
Acha ge... jesa aap kahe...
Title: Re: AS CHEMISTRY PAPER 33
Post by: sabrina on May 20, 2010, 01:51:07 pm
Yaha pe cheating NAHI CALTI! paper kal disscuss karna...okay! ;)

i was laughing at this, specially "cambridge POP out of nowhere.."
 
well that is funny ;D
Title: Re: AS CHEMISTRY PAPER 33
Post by: piggydiggy on May 20, 2010, 01:52:58 pm
yaa they really pop out of nowhere and enter the exam room like whaaat.. no one go to your school?  ;D
Title: Re: AS CHEMISTRY PAPER 33
Post by: piggydiggy on May 20, 2010, 02:15:11 pm
okay this is really happening, im not kidding... today's exam really mess up..
imma tell you what happen today in the exam room..
there's this lady from CIE pop out of nowhere enter the exam room.. all my friends and i became more nervous like crazy.. crazier than the time when i entered the exam room, where i see no biurett for titration.. then one of my classmate broke 2 pipette.. my teacher is like getting crazy because when we ask to weighing powder, a guy put the powder in the weighing scale without putting it on the boiling tube that was provided.. and there's this girl who get burn when heating the boiling tube.. really it's such a mess today... one girl also shouting to the teacher "sir, how to calculate the heat energy??" when the exam paper already taken by the invigilator but the problem is the lady from CIE still in the exam room like wrote things.. so all immediatly doing like "SHHTTT.." and the assistant is like pointing her finger to the lady.. so, today exam is really like EPIC FAIL.
Title: Re: AS CHEMISTRY PAPER 33
Post by: XaM!! on May 20, 2010, 02:57:43 pm
okay this is really happening, im not kidding... today's exam really mess up..
imma tell you what happen today in the exam room..
there's this lady from CIE pop out of nowhere enter the exam room.. all my friends and i became more nervous like crazy.. crazier than the time when i entered the exam room, where i see no biurett for titration.. then one of my classmate broke 2 pipette.. my teacher is like getting crazy because when we ask to weighing powder, a guy put the powder in the weighing scale without putting it on the boiling tube that was provided.. and there's this girl who get burn when heating the boiling tube.. really it's such a mess today... one girl also shouting to the teacher "sir, how to calculate the heat energy??" when the exam paper already taken by the invigilator but the problem is the lady from CIE still in the exam room like wrote things.. so all immediatly doing like "SHHTTT.." and the assistant is like pointing her finger to the lady.. so, today exam is really like EPIC FAIL.


lol it must be fun...   :D
Title: Re: AS CHEMISTRY PAPER 33
Post by: MaNi_DaDuDe on May 20, 2010, 03:01:02 pm
This is serious. It will definetely affect your grade.

Write a letter to CIE and tell them the incident.

okay this is really happening, im not kidding... today's exam really mess up..
imma tell you what happen today in the exam room..
there's this lady from CIE pop out of nowhere enter the exam room.. all my friends and i became more nervous like crazy.. crazier than the time when i entered the exam room, where i see no biurett for titration.. then one of my classmate broke 2 pipette.. my teacher is like getting crazy because when we ask to weighing powder, a guy put the powder in the weighing scale without putting it on the boiling tube that was provided.. and there's this girl who get burn when heating the boiling tube.. really it's such a mess today... one girl also shouting to the teacher "sir, how to calculate the heat energy??" when the exam paper already taken by the invigilator but the problem is the lady from CIE still in the exam room like wrote things.. so all immediatly doing like "SHHTTT.." and the assistant is like pointing her finger to the lady.. so, today exam is really like EPIC FAIL.
Title: Re: AS CHEMISTRY PAPER 33
Post by: AS-Girl on May 20, 2010, 03:24:30 pm
i was nervous without anything...thank god nobody came to us!
Title: Re: AS CHEMISTRY PAPER 33
Post by: piggydiggy on May 20, 2010, 04:43:48 pm
This is serious. It will definetely affect your grade.

Write a letter to CIE and tell them the incident.


why need to tell CIE? oh the one who get burn have no serious injury.. its just like a little swolen and red..

Title: Re: AS CHEMISTRY PAPER 33
Post by: ketone on May 20, 2010, 04:54:40 pm
paper was tooooooooo easyyyyyyyyyyy. just finishd it in the last minute when i heard "PLEASE STOP WRITING". hahahahahahahaha.  these people r wierd, closed all the fans. v were dying due to HEAT...
Title: Re: AS CHEMISTRY PAPER 33
Post by: IGCSE nightmare on May 20, 2010, 05:13:34 pm
Are you serious, man?!!?
You finished on time and you call that easy!
Title: Re: AS CHEMISTRY PAPER 33
Post by: 247sports on May 20, 2010, 05:25:06 pm
ooooh paper 32 is the worseee, i studied really hard for titration and it didnt come the titration thing... and suddenly the people from cambridge POP out of nowhere..  :-[
ugh dats horrible the teachers cant evn help u if teh externals r in the room
which center r u in ????
Title: Re: AS CHEMISTRY PAPER 33
Post by: piggydiggy on May 20, 2010, 06:01:39 pm
paper was tooooooooo easyyyyyyyyyyy. just finishd it in the last minute when i heard "PLEASE STOP WRITING". hahahahahahahaha.  these people r wierd, closed all the fans. v were dying due to HEAT...

wow wow wow, you must be really greaat ! omo seriously, its not easy.
Title: Re: AS CHEMISTRY PAPER 33
Post by: Allyza1n on May 20, 2010, 08:42:53 pm
paper was tooooooooo easyyyyyyyyyyy. just finishd it in the last minute when i heard "PLEASE STOP WRITING". hahahahahahahaha.  these people r wierd, closed all the fans. v were dying due to HEAT...

haha i know right.. doors were closed and fans were off..almost died due to heat :P
Title: Re: AS CHEMISTRY PAPER 33
Post by: ifraha18 on May 20, 2010, 09:32:19 pm
we h de  prctcl in our own skool..n or tchr wsnt even dere..:(
Title: Re: AS CHEMISTRY PAPER 33
Post by: Nobody on May 22, 2010, 08:28:42 am
i was nervous without anything...thank god nobody came to us!

I don't remember coming there..  ::) ::) :P
Title: Re: AS CHEMISTRY PAPER 33
Post by: toleen on May 24, 2010, 04:20:12 pm
it was not easy at all
Title: Re: AS CHEMISTRY PAPER 33
Post by: Ykov on May 26, 2010, 11:45:47 am
Paper was easy. I finished with 20 minutes to spar. The trick was not to waste any time at all. I read the question and prepared the table as I went along and skipped the calculation part of the first question and did the salt analysis first.

It's not as disastrous as the Biology practical, curse that damned Visking tubing leaking in the middle of the experiment :(
Title: Re: AS CHEMISTRY PAPER 33
Post by: IGCSE nightmare on May 26, 2010, 02:37:04 pm
Can I know what did you guys get for the enthalpy change of solution?
And how did your table look like?
Title: Re: AS CHEMISTRY PAPER 33
Post by: ketone on May 26, 2010, 08:14:22 pm
BEWARE GUYS! phy p34 will be a dangerous one!
Title: Re: AS CHEMISTRY PAPER 33
Post by: ketone on June 03, 2010, 07:01:26 pm
i warned u people before: phy p34 would be difficult: and thats what happened.