How did chem p31 go??

[WellWIshER]

riyadh, saudia.
n urs???

which skewl? :beer:

 

[filza94]

no 33....heres i saw recently
by masterboss365 » Wed May 11, 2011 5:08 pm
Tritration with KMnO4, sodium thiosulfate, potassium iodide
J07/32, J08/31, N08/32,

Heating related question. Find water of crystallisation. Heating (may be CuSO4 hydrated ) and then finding mass of water lost. Check for percentage of water present. J08/32, J09/32,

Salt anylsis
NH4+, Br-, NO3-, CO32-,
ammonium sulfate, zinc nitrate, ammonium bromide


Thanks,
Not sure 100%.

 

[musahala]

JEDDAH and have my paper in 5 hours Al-WADI!!

 

[zahraahmed]

I need help asap for question 2(e) in June 07 Chem p5, I have already drawn the graph however I just dont know how to find 'x' ...

http://www.xtremepapers.me/CIE/Internat ... 7_qp_5.pdf

 

[libra94]

riyadh, saudia.
n urs???

which skewl? :beer:

manarat, u??

 

[sweetyrox]

riyadh, saudia.
n urs???

which skewl? :beer:

manarat, u??

U ll giv 31??

 

[libra94]

yes

 

[filza94]

..

 

[princess123]

hw was the ppr?????

 

[sweetyrox]

hw was the ppr?????

It was ok....hw was urs??

 

[libra94]

paper went good Alhumdulillah
how were ur papers guys????

 

[amo54100]

chem practical wux shyt..i screwd it aup :x

 

[princess123]

yah..it wz guuud...!!!!

n hw abt the calculations?? sum galz cudnt c0mplete...!!!

 

[sweetyrox]

Ques 3 suckeddd..da rest ov da ppr was amazingg

 

[libra94]

oh yeah, many of my frnds did a mistake in question 3

 

[sweetyrox]

oh yeah, many of my frnds did a mistake in question 3

Watb do u think da threshold ov da paper wuld be??

 

[Merdons Wolfman]

hey
i got 22.9 for question 1. how much did u guys get

 

[libra94]

21.4!!!
most of my class mates were getting around 21.6!!!!!!!

 

[aislam17]

22.9 is wayy to high..Im sorry to say its wrong. Its 21.7

 

[exampasser]

21.7? Was that the titre value? My classmates and I all got around 20.6. :S

And the question said the conc. of H2SO4 was approx 0.7 dm cubed and my final answer was 6.2 dm cubed.