Fertiliser prac urgent help (1 Viewer)

[Spraynwipe]

Doing the volumetric prac to determine sulfate content of an unknown and known fertiliser (the same one from the resource section).
The problem is the barium sulfate from the burette just turns the barium chloride and HCL into a milky white colour, not red like it is supposed to. Everyone in the class had the same problem, but teacher is not allowed to help.

Anyone got this problem and how to sort it?

 

[brenton1987]

Doing the volumetric prac to determine sulfate content of an unknown and known fertiliser (the same one from the resource section).
The problem is the barium sulfate from the burette just turns the barium chloride and HCL into a milky white colour, not red like it is supposed to. Everyone in the class had the same problem, but teacher is not allowed to help.

Anyone got this problem and how to sort it?

None of the compounds listed or any possible combination there of should turn red.

 

[ibbi00]

Doing the volumetric prac to determine sulfate content of an unknown and known fertiliser (the same one from the resource section).
The problem is the fertiliser from the burette just turns the barium chloride and HCL into a milky white colour, not red like it is supposed to. Everyone in the class had the same problem, but teacher is not allowed to help.

Anyone got this problem and how to sort it?

That's exactly what's supposed to happen. It indicates a precipitate of Barium Sulfate.

 

[DNETTZ]

File:Bariumsulfatpulver.png - Wikipedia, the free encyclopedia
Heres some Barium Sulfate for you.
Its white, milky white.

Heres some Barium Chloride.
File:Barium chloride.jpg - Wikipedia, the free encyclopedia

hmmmm, that could be confusing!

I lol at your teacher who probably thought that you were doing it wrong or was just being sly.