Halide tests Flashcards
What are halide tests based on?
Precipitate formation and solubility
How can the halide ion be determined in aqueous solution?
Use of a solution of silver nitrate followed by the addition of dilute ammonia solution
What can be observed when reacting chloride ions with silver nitrate?
White precipitate
What can be observed when reacting bromide ions with silver nitrate?
Cream precipitate
What can be observed when reacting iodide ions with silver nitrate?
Yellow precipitate
What can be observed when reacting chloride ions with dilute ammonia?
White precipitate dissolves
What can be observed when reacting bromide ions with dilute ammonia?
No observable reaction
What can be observed when reacting iodide ions with dilute ammonia?
No observable reaction
What can be observed when reacting chloride ions with concentrated ammonia?
N/A
What can be observed when reacting bromide ions with concentrated ammonia?
Cream precipitate dissolves
What can be observed when reacting iodide ions with concentrated ammonia?
No observable reaction
Write ionic equation for the reaction between the chloride ions and silver ions
Ag+ (aq) + Cl- (aq) → AgCl (s)
Write ionic equation for the reaction between the chloride ions and silver ions
Ag+ (aq) + Cl- (aq) → AgCl (s)
Write ionic equation for the reaction between the bromide ions and silver ions
Ag+ (aq) + Br- (aq) → AgBr (s)
Write ionic equation for the reaction between the iodide ions and silver ions
Ag+ (aq) + I- (aq) → AgI (s)
