Strength of Acids and Alkalis (2)

Type of acid for hydrochloric acid, HCl

Is a strong acid

The formation of the hydroxonium ions, H3O+

Is the product of a dative bond formed between hydrogen ion, H+ with water molecule

Weak acid

Is an acid that ionises partially in water to produce low concentration of hydrogen ions, H+

The reason which ethanoic acid, CH3COOH is a weak acid (1)

Because the molecules of ethanoic acid, CH3COOH ionise partially in water

The reason which ethanoic acid, CH3COOH is a weak acid (2)

The degree of dissociation of ethanoic acid molecules is 1.54%

The reason which ethanoic acid, CH3COOH is a weak acid (3)

From 100 molecules of ethanoic acid, CH3COOH, only one molecule of ethanoic acid, CH3COOH ionises to hydrogen ions, H+ and ethanoate ions, CH3COO–

The reason which ethanoic acid, CH3COOH is a weak acid (4)

The rest still exist as molecules of ethanoic acid, CH3COOH

Type of acid for ethanoic acid, CH3COOH

Weak acid

Partial ionisation of ethanoic acid, CH3COOH

Types of alkali

Strong Alkalis and Weak Alkalis