Chemistry P33 Anions/Cations

[Zohaib Sherazi]

-Copper Sulphate
-Manganese Sulphate
-Cobalt Chloride
-Ammonium Chloride

How many correctly identified ?


P.S. This is based on the information i've received from around Pakistan. I myself did not appear for chem this session.

 

[hina]

hahaha i got dm all correct!!

 

[Zohaib Sherazi]

Thats nice.

 

[Carry]

how to identify cobalt??..

 

[hina]

http://www.chemguide.co.uk/inorganic/tr ... obalt.html its mentiond in the link but its not requird as test for cobalt is not part of syllabus

 

[intel1993]

i got it rite tooooo

 

[lamaj]

yippppy i got all the cations correct. I wnted to confirm whether we are gonna ad hcl first or bacl2 in 1st part of qs 2 to test sulphate and co3

 

[lamaj]

someone plz reply n i was getting 10.2%, the percentage differnece. in the major source error i wrote heat lost to surrounding.are my ans correct

 

[capricon 92]

we were given barium nitrate to test for siulphate n i guess we had to use it first than hcl

 

[capricon 92]

me too .i wrote heat loss to surrounding as well n precaution to use insulating material around beaker so tht heat loss is reduced

 

[sse2010]

the error cant be heat lost to surrounding..it shud be heat gained frm surounding..the reation was endothermic!

 

[maximum_user]

yippie i too wrote heat gained from the surroundings..cos it was endothermic reaction...and i wrote that lid shuld be used......to reduce heat gained from the suroundings?????is that right?

 

[sse2010]

ya lid or any other kind of insulation like palcing the small beaker in a larger one wid cotton in between to reduce heat gain by conduction

 

[sse2010]

placing*

 

[Syed.Mazahir.Rizvi]

^^^provide lagging..hey guys mine on 27th plz post appropriate guess!!!

 

[obr***]

guyx can ne1 tell wat ANIONS u got ??????????????? :roll: :roll:

 

[hina]

Cu2+, NH4+, Mn2+

 

[darkism]

i also worte heat loss but is my eror was 14%....yea cations were awl ryt...

 

[obr***]

nd ANIONS ?????????????

 

[capricon 92]

anions were sulphate ,carbonate n fa4 main sulphate+carbonate