# What kind of ion is contained in salts that produce an acidic solution?

Jun 7, 2017

see below

#### Explanation:

A salt dissolved in water can have a neutral, acidic or basic reaction, because of the ions by which it is formed.
What is happening is called hydrolysis.
If the salt is made from strong acid and a strong base (for example $N a C l , K N {O}_{3} , L {i}_{2} S {O}_{4}$) hydrolysis doesn't happen and the reaction is neutral.

If the salt is made from weak acid and a strong base (for example $N {a}_{2} C {O}_{3} , K N {O}_{2} , L {i}_{2} S$) it happens a basic hydrolysis.
If the salt is made from strong acid and a weak base (for example $N {H}_{4} C l , A g N {O}_{3} , Z n S {O}_{4}$) it happens an acid hydrolysis.

If the salt is made from weak acid and a weak base (for example $M g C {O}_{3} , A g N {O}_{2} , \left(N {H}_{4}\right) 2 S$) it happens an acid or basic hydrolysis, depending on the strengthof the ions.