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

1 Answer
Jun 7, 2017

Answer:

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 #NaCl, KNO_3, Li_2SO_4#) hydrolysis doesn't happen and the reaction is neutral.

If the salt is made from weak acid and a strong base (for example #Na_2CO_3, KNO_2, Li_2S#) it happens a basic hydrolysis.
If the salt is made from strong acid and a weak base (for example #NH_4Cl, AgNO_3, ZnSO_4#) it happens an acid hydrolysis.

If the salt is made from weak acid and a weak base (for example # MgCO_3, AgNO_2, (NH_4)2S#) it happens an acid or basic hydrolysis, depending on the strengthof the ions.