Here's a breakdown:
* Oxo-acids: These are acids containing oxygen, hydrogen, and at least one other element. The acidic hydrogen is always bonded to an oxygen atom. Examples include sulfuric acid (H₂SO₄), nitric acid (HNO₃), and phosphoric acid (H₃PO₄).
* Salt formation: When an oxo-acid reacts with a base (usually a metal hydroxide or a metal oxide), the hydrogen ions (H+) from the acid are replaced by the metal cation or a positively charged polyatomic ion. This results in the formation of a salt and water.
Here's an example:
Reaction of sulfuric acid (H₂SO₄) with sodium hydroxide (NaOH):
H₂SO₄ (aq) + 2NaOH (aq) → Na₂SO₄ (aq) + 2H₂O (l)
* Sulfuric acid (H₂SO₄) is an oxo-acid.
* Sodium hydroxide (NaOH) is a base.
* Sodium sulfate (Na₂SO₄) is the salt formed.
Key characteristics of salts of oxo-acids:
* Ionic nature: These salts are ionic compounds, meaning they are composed of positively charged cations and negatively charged anions.
* Anionic component: The anion of the salt is derived from the oxo-acid by removing the hydrogen ions (H+) and adding a negative charge for each hydrogen removed. For example, the sulfate anion (SO₄²⁻) is formed from sulfuric acid (H₂SO₄) by removing two hydrogen ions.
* Naming: Salts of oxo-acids are typically named by replacing the "-ic" or "-ous" suffix of the acid with "-ate" or "-ite" respectively. For example, sulfuric acid (H₂SO₄) forms sulfates, while sulfurous acid (H₂SO₃) forms sulfites.
Examples of salts of oxo-acids:
* Sodium chloride (NaCl) - formed from hydrochloric acid (HCl)
* Potassium nitrate (KNO₃) - formed from nitric acid (HNO₃)
* Calcium carbonate (CaCO₃) - formed from carbonic acid (H₂CO₃)
* Ammonium phosphate ((NH₄)₃PO₄) - formed from phosphoric acid (H₃PO₄)
Understanding salts of oxo-acids is crucial for comprehending chemical reactions and nomenclature in inorganic chemistry.
