CHEMISTRY P34

[BlackPapersAdmin]

So far we just know about the following:
Question No. 1
There might be ENTHALPY CHANGE, PERCENTAGE IMPURITY,
For enthalpy change, probably it has something to do with Na2CO3 and NaHCO3


Question No. 2
salts are ferrousammoniumsulfate....ammoniumsulfate....sodiumsulfate and sodium sulfite....
For cations and anions there are sulphate, copper, cr, manganese, etc.

organic tets involve glucose and butanone...one is aldehyde other is ketone using 2,4 DNPH...

Anyone know any more details like the whole CONFIDENTIAL INSTRUCTIONS?

Please need help

 

[BlackPapersAdmin]

come on guys n gals
we need help
plz be alive and help

 

[Supergirl]

The thing is no one knows anything, so whats the point?
Just solve the past papers with the enthalpy question.

 

[sana_92]

r u sure these r da salts which are coming????

 

[Xam]

Plz help....................

 

[aaq]

sure?:$

 

[aaq]

sure?:$

 

[kugs]

The salts and anion/cations are different? What will we do with the salts?

 

[noora]

guys just relax wat is written is sure just prac past paper
and anyone tell me how to calculate percentage impurity

 

[vux]

i have a feeling the enthalpy change is similar to this one. opinion?

http://www.funqa.com/chemistry/3404-chemistry-2.html