Quick question (1 Viewer)

[LaCe]

to clarify: Sodium (Na+) is soluble in just about anything rioght? Only way to show its prescence is through flame test - yellow colour indicates this. There must be an anion to form a precipitate with this... i dunno.

Cheers

 

[IcEy]

Yeah, I think you're right there. All sodium salts are solutble in water. You don't usually test for sodium in water, because there's nothing wrong with them - they don't do anything bad. Usually, you'd test for Ba, Ca, Mg, Fe II, Fe III, and something else...

Hope it helps.

 

[lil lelu]

yep your exectly right

 

[LaCe]

And what about NO3- anions? can they be tested using precipitate reactions?

All group one cations are soluble basically, from what i have read, some exceptions maybe but look at solubility charts.

 

[Dreamerish*~]

And what about NO3- anions? can they be tested using precipitate reactions?

All group one cations are soluble basically, from what i have read, some exceptions maybe but look at solubility charts.

I love NO₃. It's soluble in everything.

 

[Casmira]

afaik you need a variety of tests to detect NO3 ? correct me if im wrong, 2 of my weakest subsections in Chemistry is Electrochemistry and cation/anion testing

 

[IcEy]

I don't think you CAN test for NO3, at least WE can't.

 

[Jumbo Cactuar]

I love NO₃. It's soluble in everything.

I hate nitric acid ... it reacts with keratin to dye skin yellow ... and now everyone thinks i am a 24/7 smoker.

'No you've got me all wrong ... it was the nitrating acid!! ... what, you think I'd lie, sMelL mY bReaTHe DamN IT!!!'

 

[jamesy_1988]

You can test for nitrates in a test called the brown ring test.

I can't remember exactly how it is done but I know that you use an iron salt and a concentrated acid, probably H2SO4

When I finid out exactly how it is done I'll write back here

Jamesy