testing for phosphate ion (1 Viewer)

[ay_caramba]

stupid q but if u add HNO3 and ammonium molybdate, do u get a yellow precipitate coz thats what i put :S
not sure

 

[xeriphic]

I wrote add molydbate ions and should be blue colour, lol lucky that section was also referring to the experiment since I didn't study any solubility rules

 

[ay_caramba]

I wrote add molydbate ions and should be blue colour, lol lucky that section was also referring to the experiment since I didn't study any solubility rules

lol o crap

 

[nit]

add ammonium molybdate and nitric acid, and it will be a pale yellow ppte, and add ascorbic acid and ull get your blue ppte

 

[ay_caramba]

add ammonium molybdate and nitric acid, and it will be a pale yellow ppte, and add ascorbic acid and ull get your blue ppte

my "o crap" has turned into a "woohoo"
u guys r playing with my emotions

 

[jam3s]

Add NH3 then Ba to get white pricip

 

[Gesus]

Barium ions in a alkaline solution

i think its yellow with Silver but i wasnt sure

 

[stevenwong86]

yeah I put yellow with silver, I think thats right (its right in the macquarie revision guide anyway )

 

[xeriphic]

add ammonium molybdate and nitric acid, and it will be a pale yellow ppte, and add ascorbic acid and ull get your blue ppte

you sure ?? ahhhhh

 

[wind]

Phosphate:

* A yellow precipitate of silver phosphate of silver phosphate forms when silver nitrate is added.
* A fine white precipitate forms when barium nitrate is added.

 

[sneeble]

I put NH3 & Ba(NO3)2 because it forms a white precipitate with Barium ions in basic conditions.

 

[mushroom_head]

for phosphate i put silver which gives you yellow ppt (this is right..right?)
for sulfate i put barium ions which gives white ppt

what was the other q again?

 

[Tommy_Lamp]

Add Fe3+ and a green residue forms.

 

[:: ck ::]

ur all rite so shutup

i wrote add nh3 and then add ba(no3)2

 

[wind]

Chloride, Cl-:

* A white ppt of silver chloride is formed when silver nitrrate is added.
* A this white ppt turns purple or brown when exposed to light.

 

[Narelle]

hahaha, i just guessed white precipitate for all of them

mmm lucky its not worth as much

 

[aim54x]

yeah I put yellow with silver)

so did i. wat did ppl put 4 Cl????

 

[The Bograt]

I guessed them all except the last one, for which I put Ba 2+ will for a white precipitate
For the second I put Al 3+....I had no idea aye, didnt even know what a 'reagent' or whatever was.

 

[googleplex]

wat happens if you got the ion/reagant right but the ppt wrong? no half marks in the hsc?

 

[aim54x]

guessd Cl knew the last one but i was not 100% bout the second.