Acids, Bases and Salts

Worked examples (4)

• 1Reaction of zinc with hydrochloric acid
• 2Titration calculation — concentration of NaOH
• 3Strong vs weak acid
• 4Titration procedure

Worked examples (4)

• 1Acidic oxide — reaction of SO₂ with NaOH
• 2Identifying an amphoteric oxide
• 3Why CO₂ is an acidic oxide
• 4Basic oxide reacting with an acid

Worked examples (5)

• 1Identifying carbonate anion
• 2Test for sulfate ions
• 3Identifying Cu²⁺ ions
• 4Flame tests
• 5Identifying ammonia gas

Worked examples (4)

• 1Preparing copper sulfate crystals from copper oxide
• 2Preparing an insoluble salt — lead(II) sulfate
• 3Why copper cannot react with HCl to make copper chloride
• 4Ionic equation for neutralisation