Question

Can you explain why sodium salts in water do not make it hard water

Answer 1

sodium salts on reacting with soap(ch3coona) have no reaction spit don't form precipitate and hence don't make water hard

Answer 2

Sodium salts do not make water hard because hardness of water is due to Calcium (Ca) and Magnisium (Mg) ions. So thats why sodium salt do not make water hard.

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