Question

Identify the parent acid and parent base in the following salts: Calcium Carbonate and Aluminium Chloride

Answer 1

Answer:

ANSWER

HNO

3

+NaOH→NaNO

3

+H

2

O

Acid used : Nitric Acid -HNO

3

Base used: Sodium Hydroxide - NaOH

NH

4

Cl is formed from the reaction of NH

3

, a weak base, and HCl, a strong acid.

NH

3

+HCl→NH

4

Cl

Answer 2

Answer:

Formula of the salts and their parent acids and bases:

Name                            Salt formula                 acid                                  base

Potassium nitrate           KNO3              nitric acid (HNO3)                  KOH

Calcium carbonate        CaCO3            CO2/Carbonic acid   Ca(OH)2/CaO

Magnesium sulphate     MgSO4           SO2 (H2O)                        Mg(OH)2

Zinc Chloride                  ZnCl2              HCl                              Zn    

Aluminium phosphate       AlPO4                      H3PO4                    Al(OH)3