Chemistry p33

[Feelguud77]

GUYX.....it ll be XSO4.7H2O

Dude, wont it be "FeSO^4.xH2O" and we have to calculate x? Like in Nov09 p33

 

[hassam]

it ll be feso4.....but Fe will be unknown......u ll have to deduce it via Ar of X

 

[Feelguud77]

Well whatever it is, it involves a crucible

 

[zahraahmed]

hey i just had a look at the crucible experiments.
the crucible is used to convert a hydrated salt by heating into an anhydrous one......................now how does this fit here?

 

[ahmedrik1501]

Please tell me in DETAIL ,how do i find the value of X

its easy very easy.... U need to use ratio method...

using your values


8.56x10^-3 of FeSO4 gives 0.03 mols of water
so 1 moles of Feso4 will gives W mols of water


0.03/8.56x10-3
= 3.5

so u can give the value rounded of to be 4 or 3 its ur choice....... :beer:

 

[filza94]

thanks 4 telling i was really confused in dix type of questionss.......

 

[angelicsuccubus]

Anyone please explain it in a simple, understandable way. Thanks.
Attachments

hey .. which paper is this? what year?

 

[zahraahmed]

thanks 4 telling i was really confused in dix type of questionss.......

 

[filza94]

http://notezone.net/cambridgechem/chemi ... sis%5D.pdf can sum1 go in dix page 11 n do solve n gimme answers plzzzz i cant able to slove it n it might cum for exam help mee!!!!

 

[Anonymousx3]

Anyone please explain it in a simple, understandable way. Thanks.
Attachments

hey .. which paper is this? what year?

October/November 2009 Paper 32.

 

[filza94]

i dont da question bt got frm sum thread find it

 

[ahmedrik1501]

i solve each of them and i will tell u the answers till night k

 

[hassam]

leave solubility question....its not even cumin in 34.......

 

[hassam]

filza...did u got more info abt salts...???

 

[Feelguud77]

hey i just had a look at the crucible experiments.
the crucible is used to convert a hydrated salt by heating into an anhydrous one......................now how does this fit here?

Check paper Nov09 33
Method 1 of 2, its highly likely that something similar will come

 

[rickyponting]

hey i just had a look at the crucible experiments.
the crucible is used to convert a hydrated salt by heating into an anhydrous one......................now how does this fit here?

Check paper Nov09 33
Method 1 of 2, its highly likely that something similar will come

what do you mean by method 1 of 2? please clarify?

 

[filza94]

i dint get hassam heard sumwhere ammonium bromide zinc sulfate bt not 100% sure.......

 

[filza94]

MEANS Q.1??

 

[yubakkk]

is these guess or sure dude?

 

[filza94]

which one u asking abt??