AS Chemistry Practical - Paper 34

[Sheikh Nahiyan]

But thats wat came for p33 soooo??? It cant b same i guess...

IKR! But I just said that what I heard from here :L Dont know what will come. I hope some easy things come

 

[Sheikh Nahiyan]

But be careful not to be fooled, NaBr can also react with H2SO4, producing NahSO4 and HBr, and the HBr again gets oxidized (reducing H2SO4), and producing SO2, and Br2 gas!! (Brown)

Such complicated things wont come most probably

 

[Alool]

procedures are not a problem, calculations are....

 

[The_other_guy]

Dude it's Enthalpy

Autocorrect, it corrects mistake and frankly, I don't write enthalphy that much form my tab and hence the mistakes :s

 

[mrnt3250]

I really hate the part that I have to fill the burette.
Once in a mock exam, the container provided was big for funnel so what happened was that it spilled all over my station on FB solutions
And once also it went into my conical flask so I had to remake it.

 

[Alool]

ahh finally the community is back!

 

[ahmed abdulla]

ahh finally the community is back!

ya ..

 

[ahmed abdulla]

I can tell that till evening.

sis where are u ??
we are dieing here for a reply from u !!
plz hurry ?

 

[samiaaaaaaaaaaaaahhh]

I think titration is with HCl and NaOH. not 100% sure though.

still not sure?

 

[samiaaaaaaaaaaaaahhh]

an

sis where are u ??
we are dieing here for a reply from u !!
plz hurry ?

any guesses for tomorrow?

 

[samiaaaaaaaaaaaaahhh]

guysssss any guesses for tomorrows exam? i'm really worried! please tell me asap

 

[kingos3111]

guys i want to do alevel bio but how
much does it cost shooud i pay only 300aed or 900 aed tell me

 

[samiaaaaaaaaaaaaahhh]

ca

I can tell that till evening.

can you tell now
?

 

[Ammar Naeem]

Q-1 thermometer titration, we will be asked to make a graph in this question, shape should be of two intersecting lines.Refer to n11 v31 q1 for idea of question
Q-2 Question on enthalpy change
Q-3 Expected Ions- Zinc, Iodide, Carbonate, Sulphate,Nitrate and lead

 

[Buzzkiller]

Q-1 thermometer titration, we will be asked to make a graph in this question, shape should be of two intersecting lines.Refer to n11 v31 q1 for idea of question
Q-2 Question on enthalpy change
Q-3 Expected Ions- Zinc, Iodide, Carbonate, Sulphate,Nitrate and lead
Hey can you give the link of any enthalpy change question?

 

[Buzzkiller]

Q-1 thermometer titration, we will be asked to make a graph in this question, shape should be of two intersecting lines.Refer to n11 v31 q1 for idea of question
Q-2 Question on enthalpy change
Q-3 Expected Ions- Zinc, Iodide, Carbonate, Sulphate,Nitrate and lead

Hey can you give me the link of any enthalpy change questioon?

 

[Bluejeans#]

how do we draw two straight lines of best fit which
intersect.?

 

[Bluejeans#]

Hey can you give me the link of any enthalpy change questioon?

2007-2009 has enthalpy

 

[mrnt3250]

how do we draw two straight lines of best fit which
intersect.?

You will be having two different temperature readings.
One will be increasing, and one will either be decreasing or constant value.
Then you make a line through these 2 group of data, and the intersecting point between the lines (extended) will tell u temp. change and vol.

 

[sarapippin]

Can anyone please give a step by step guide for the salt analysis of Zinc iodide carbonate and lead? Pretty pleaaase!! and also the gases too!