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Acidity

Contents

Key Stage 4

Meaning

Acidity is the strength of an acid determined by how easily Hydrogen ions are formed when the acid dissolves in water.

About Acidity

When a compound does dissolve in water to produce an acid not all of the Hydrogen ions will dissociate from the compound.
The strength of an acid, or its acidity, is determined by how easily Hydrogen ions are formed.
The more easily Hydrogen ions form, the stronger the acid (the higher the acidity).

References

AQA

Acidity, page 131, GCSE Chemistry; Student Book, Collins, AQA

Edexcel

Acidic solutions, page 196, GCSE Combined Science, Pearson Edexcel
Acidic solutions, page 52, GCSE Chemistry, Pearson, Edexcel
Acidity, page 196, GCSE Combined Science, Pearson Edexcel
Acidity, page 52, GCSE Chemistry, Pearson, Edexcel