As its name suggests,
hydrochloric acid is an acidic solution.
A pH measurement confirms it: pH is lower than 7.
of a solution is linked to the presence of hydrogen ions (formula H+)
The word "
hydrochloric "derives from " chlorine " which suggests that chloride
ions are present in this solution.
it, a test for chloride ions may be realized:
A few drops of silver nitrate in hydrochloric acid leads to the
formation of a white precipitate which means the test is positive.
Hydrochloric acid therefore contains chloride ions.
acid is a solution containing hydrogen ions H+ and chloride ions Cl-.