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Milly Stuchinski

What are five examples of double, complex, basic, normal, and acid salts?

Carlos Torres  Follow

We can know that a salt is acidic or basic by checking its acidic and basic radicals , that is, it's cation and anion.

We know thet every salt is prepared from an acid and a base.

  1. If a salt is prepared from a strong acid and a weak base it is acidic.
  2. If a salt is prepared from a weak acid and strong base it is basic
  3. If a salt is prepared from a strong acid and a strong base it is neutral.
  4. If a salt is prepared from a weak acid and a weak base it is neutral.

Now to find out it's source acid and base:

The anion is basic radical. Add H+ to the anion of the salt. And cation is the acidic radical. Add OH- to the cation if the salt. Lets take NaCl for example. It has Na+ cation and Cl- anion.

Adding H+ to Cl- , it becomes HCl. Hence its source acid is HCl which is very strong.

Add OH- to Na+ , it becomes NaOH. Hence its source base is NaOH which is also very strong.

Hence NaCl is neutral.

This is the very basic method for finding whether the salt is acidic or basic. If you have newly studied about it and are getting confused don't be worried. Only after a little practice this will become a very easy topic for you.

For experimental basis we use the method of pH to find out wheter the salt is acidic or basic. pH means -log(conc. of H+ ions). At 25°C if pH is 7 the salt is neutral. If pH is more than 7 it is basic. If pH is less than 7 it is acidic.

You can get more details about this topic by studying Salt Hydrolysis in ch. Equilibrium of chemistry of class 11.

Hope this answers your question. If you are not able to find out nature of a salt, just ask in this platform. I will surely help you out.

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Chaudhary Haziq  Follow

Double salt: CaCO3.MgCO3

Complex salt: [Co(NH3)6]Cl3

Basic salt: Mg(OH)Cl

Normal salt: NaCl, CaCl2

Acid salt: NaHCO3

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