How could you confirm the presence of nitrate ions in an aqueous solution? - Leaving Cert Chemistry - Question (i) - 2005
Question (i)
How could you confirm the presence of nitrate ions in an aqueous solution?
Worked Solution & Example Answer:How could you confirm the presence of nitrate ions in an aqueous solution? - Leaving Cert Chemistry - Question (i) - 2005
Step 1
Add concentrated solution of iron(II) sulfate (FeSO₄)
96%
114 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
To begin with, carefully add a concentrated solution of iron(II) sulfate (FeSO₄) to a test tube.
Step 2
Followed by concentrated sulfuric acid (H₂SO₄)
99%
104 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
Next, without mixing, add concentrated sulfuric acid (H₂SO₄) down the side of the test tube to gently layer it over the iron(II) sulfate solution.
Step 3
Observe for a brown ring
96%
101 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
Finally, observe the junction of the two solutions. A brown ring should develop at this junction, indicating the presence of nitrate ions.
Join the Leaving Cert students using SimpleStudy...
