final practical details!

[examtime]

PrincessZahra please PM me the Chem 33 details as well, it would be a great help. Thanks alot,

If anybody else can as well that would be highly appreciated - thank you SO much for your contribution.

 

[maximum_user]

hey princesszahra u didnt pm me the details of chemistry practical 33...im waiting

 

[mz23]

please if anybody has the IRs , pm me!!! i need it really badly =/

 

[matcam]

princess zahra,i am waiting 4 ur help.

 

[s.hijazi]

guyss... theres a cooling curve of saturated solution that is suppose to come
for chem 33
latest info!

 

[matcam]

cooling curve??hve u done this kind of expriment b4 this in your school?

 

[princesszahra]

i told this latest info soo long back !!!!
anyways thanx!
chem is mostly abt salt analysis and energetics
salt analysis complicated aye ga
aur aik solution distilled water hoga jis pe hum sare test karain gay
but identiy nai kar payen gay
i think she shouldnt mention abt it until and unless its asked in the paper
and 2 4 6 trinitrophenyl hydrazine is provided
ull have to diferenciate between an aldehyde and ketone
too many solutions
may be 7 or 8 for salt analysis
and then in energetics
u have to dra a graph
and calculations wont be that tough
just have a knowledge how to decide the volumes u can take to find the concentaraion of one of the reactant using energetics
this is all i know abt

 

[princesszahra]

i told this latest info soo long back !!!!
anyways thanx!
chem is mostly abt salt analysis and energetics
salt analysis complicated aye ga
aur aik solution distilled water hoga jis pe hum sare test karain gay
but identiy nai kar payen gay
i think she shouldnt mention abt it until and unless its asked in the paper
and 2 4 6 trinitrophenyl hydrazine is provided
ull have to diferenciate between an aldehyde and ketone
too many solutions
may be 7 or 8 for salt analysis
and then in energetics
u have to dra a graph
and calculations wont be that tough
just have a knowledge how to decide the volumes u can take to find the concentaraion of one of the reactant using energetics
this is all i know abt

 

[proceed6]

Thanks Princess!

 

[zaibcharolia]

can anyone please pm chem 33. please please please.

 

[alevelxt]

@princesszahra

I'm givin chem31. 2mro
thnx for wtvr u mentioned..so its very unlikely we'll have titrations?

'salt analysis complicated aye ga'?
how complicated, as in we still add/do wtvr's written in the paper and try to match the results with observations in the back of the paper?

'just have a knowledge how to decide the volumes u can take to find the concentration of one of the reactant using energetics'
do you mean we have to find out the concentration from energetics..as in the enthalpy?

If u can PM me ne relevant info, much appreciated

 

[moon]

just have a knowledge how to decide the volumes u can take to find the concentaraion of one of the reactant using energetics
this is all i know abt

please princesszahra help me to know how to decide the volumes to find the concentration of one of the reactant using energetics??? I am really waiting for ur reply Thanx in advance..

 

[s.hijazi]

@ zahra: oh kay.. did'nt know about that!!!
precisely explain the last line!!!

 

[moiz javed]

how many question is chem p33

 

[Nero319]

what do you guys mean by p 33 i've got p 31 and i thought there were only 2 variances

 

[deelo]

The best possible info i can give u guys is that there is NO titration in the paper tomorrow!!!
there is a question regarding the heat of reaction..two salts SODIUM SULPHATE AND SODIUM CARBONATE will be provided, we will hv to find out the change in temp, there will b a question regarding the enthalpy change of the reaction!!
another question will be about the identification of anions and cations!!
5salts, CuSO4, MnSO4, CoCl, NH4Cl will be provided..
cations are Cu, Mn, NH4
anions are SO4 and Cl

 

[s.hijazi]

The best possible info i can give u guys is that there is NO titration in the paper tomorrow!!!
there is a question regarding the heat of reaction..two salts SODIUM SULPHATE AND SODIUM CARBONATE will be provided, we will hv to find out the change in temp, there will b a question regarding the enthalpy change of the reaction!!
another question will be about the identification of anions and cations!!
5salts, CuSO4, MnSO4, CoCl, NH4Cl will be provided..
cations are Cu, Mn, NH4
anions are SO4 and Cl

how sure are you about the salts??? please tell

 

[intel2009]

these are 4 salts what is the fifth one

 

[alevelxt]

The best possible info i can give u guys is that there is NO titration in the paper tomorrow!!!
there is a question regarding the heat of reaction..two salts SODIUM SULPHATE AND SODIUM CARBONATE will be provided, we will hv to find out the change in temp, there will b a question regarding the enthalpy change of the reaction!!
another question will be about the identification of anions and cations!!
5salts, CuSO4, MnSO4, CoCl, NH4Cl will be provided..
cations are Cu, Mn, NH4
anions are SO4 and Cl

which variant r u referring to? 31/32/33 ?

 

[intel2009]

33