Describe a test to confirm the presence of chloride ions in an aqueous solution. - Leaving Cert Chemistry - Question (n) - 2001
Question (n)
Describe a test to confirm the presence of chloride ions in an aqueous solution.
Worked Solution & Example Answer:Describe a test to confirm the presence of chloride ions in an aqueous solution. - Leaving Cert Chemistry - Question (n) - 2001
Step 1
Add Silver Nitrate
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 test for the presence of chloride ions, take a small sample of the aqueous solution and add a few drops of silver nitrate solution (AgNO₃). This reaction will form a white precipitate of silver chloride (AgCl) if chloride ions are present.
Step 2
Observe the Precipitate
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
Carefully observe the mixture after adding silver nitrate. The formation of a white precipitate indicates the presence of chloride ions in the solution.
Step 3
Test for Solubility in Ammonia
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
To further confirm the presence of chloride ions, treat the white precipitate with dilute ammonia (NH₃) solution. If the precipitate dissolves, this indicates that chloride ions are present since silver chloride is soluble in ammonia.
Join the Leaving Cert students using SimpleStudy...
