Naming Acids

Binary Acids

The compound hydrogen chloride is a molecular compound. When dissolved in water, hydrogen chloride forms a solution that conducts electricity, turns litmus red and reacts with magnesium to produce hydrogen. Compounds with this set of properties are called acids. The solution of hydrogen chloride in water is known as hydrochloric acid. The table below lists some binary acids, acids formed from binary compounds. The formula HCl does not indicate whether it refers to the compound hydrogen chloride or to the acid hydrochloric acid. If the HCl is in solution, then you should use the name hydrochloric acid.

 

 Compound

Name

Acid Formed

 HF

Hydrogen fluoride

Hydrofluoric acid

HBr

Hydrogen bromide

Hydrobromic acid

HI

 Hydrogen iodide

Hydroiodic acid

H2S

Hydrogen sulphide

Hydrosulphuric acid


Oxyacids

Oxyacids are acids containing oxygen in addition to hydrogen and another element. The name of the acid is usually derived from the name of this latter element.

All acids with "-ate" polyatomic ions are called "-ic" acids

All acids with "-ite" polyatomic ions are called "-ous" acids

All acids with "hypo-----ite" polyatomic ions are called "hypo-----ous" acids

All acids with "per-----ate" polyatomic ions are called "per-----ic" acids

At this point you could review the polyatomic ion relationships and then come back using the back button in netscape!

If you haven't had too much sun let's practice!

1. H2SO2

2. HNO2

3. H3PO5

4. H2CO

5. pernitric acid

6. sulphurous acid

7. acetic acid

8. hypochlorous acid

So...what's left to do?

Bases and Hydrates

 

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