Activity 2.13 Class 10 Science

 This activity explains how different salts are formed through neutralisation reactions and how to classify salts into other families.

Aim of the activity

To write the chemical formula, identify the parent acid and base and classify them into different salt families.

Materials Required

   1. Potassium sulphate

   2. Sodium sulphate

   3. Calcium sulphate

   4. Magnesium sulphate

   5. Copper sulphate

   6. Sodium chloride

Procedure

We will write the formulae of the given salts and write the chemical formula. We identify the parent acid and base from which these salts are formed and classify them into different salt families.

Explanation

All salts are formed through the neutralisation reaction between an acid and a base. Each salt has positive and negative ions. Positive ion(cation) is derived from the base, and negative ion(anion) is derived from acids.

Observations

Table

S. No.	Salt	Formula	Acid	Base
1	Potassium sulphate	K2SO4	H2SO4	KOH
2	Sodium sulphate	Na2SO4	H2SO4	NaOH
3	Calcium sulphate	CaSO4	H2SO4	Ca(OH)2
4	Magnesium sulphate	MgSO4	H2SO4	Mg(OH)2
5	Copper sulphate	CuSO4	H2SO4	Cu(OH)2
6	Sodium chloride	NaCI	HCI	NaOH
7	Sodium nitrate	NaNO3	HNO3	NaOH
8	Sodium carbonate	Na2CO3	H2CO3	NaOH
9	Ammonium chloride	NH4CI	HCI	NH4OH

Conclusion

We can conclude that –

   1.  All salts are products of the metallization reaction of acids and bases.

   2. These salts can be classified into different families based on cations and anions.