Answer:
1) NaCN is a basic salt
2) [tex]KNO_3[/tex] is a neutral salt
3) [tex]NH_4Cl[/tex] is an acidic salt
4) [tex]NaHCO_3[/tex] is a basic salt
5) [tex]Na_3PO_4[/tex] is a neutral salt
Explanation:
Salts are formed by the combination of an acid and a base. There are 3 types of salt:
For the given salts:
1) NaCN is a basic salt as it is formed by the combination of sodium hydroxide (strong base) and HCN (weak acid). The chemical equation for the hydrolysis of salt follows:
[tex]NaCN+H_2O\rightarrow NaOH+HCN[/tex]
As NaOH is released in the solution. Thus, it is a basic salt.
2) [tex]KNO_3[/tex] is a neutral salt as it is formed by the combination of potassium hydroxide (strong base) and nitric acid (strong acid).
3) [tex]NH_4Cl[/tex] is an acidic salt as it is formed by the combination of ammonium hydroxide (weak base) and HCl (strong acid). The chemical equation for the hydrolysis of salt follows:
[tex]NH_4Cl+H_2O\rightarrow NH_4OH+HCl[/tex]
As HCl is released in the solution. Thus, it is an acidic salt.
4) [tex]NaHCO_3[/tex] is a basic salt as it is formed by the combination of sodium hydroxide (strong base) and partial dissociation of carbonic acid (weak acid). The chemical equation for the hydrolysis of salt follows:
[tex]NaHCO_3+H_2O\rightarrow NaOH+H_2CO_3[/tex]
As NaOH is released in the solution. Thus, it is a basic salt.
5) [tex]Na_3PO_4[/tex] is a neutral salt as it is formed by the combination of sodium hydroxide (strong base) and phosphoric acid (strong acid).