Hello
Two questions
1. This is from Conq. Chem, in a table of tests used to identify anions (p214 of latest edition).
Anion: Phosphate
Test: Addition of Mg2+ in ammonia, ammonium nitrate buffer produces a white precipitate of Mg(NH4)PO4.
The given reaction for this test is PO4^3- + Mg2+ + NH4+ --> Mg(NH4)PO4
x_0
How does this equation work? I don't see how there's a 'buffer' in this equation.
2. (also from cc) What anion is present in a solution which produces a precipitate with alkaline BaCl2 but not with an acidic solution of that substance? What is the significance of having the solution as acidic or basic?
Cheers![Smile :) :)](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
1. This is from Conq. Chem, in a table of tests used to identify anions (p214 of latest edition).
Anion: Phosphate
Test: Addition of Mg2+ in ammonia, ammonium nitrate buffer produces a white precipitate of Mg(NH4)PO4.
The given reaction for this test is PO4^3- + Mg2+ + NH4+ --> Mg(NH4)PO4
x_0
How does this equation work? I don't see how there's a 'buffer' in this equation.
2. (also from cc) What anion is present in a solution which produces a precipitate with alkaline BaCl2 but not with an acidic solution of that substance? What is the significance of having the solution as acidic or basic?
Cheers