HKDSE (Hong Kong) · Chemistry
Acids, Bases and Salts
16 practice questions, each with the answer and an explanation.
Practise Acids, Bases and Salts now
Random questions from this topic, one at a time. You see the answer and the explanation straight after each one.
All 16 questions
- What is the pH of a mol/dm solution of the strong monobasic acid HCl?
- What is the pH of a mol/dm solution of the strong monobasic acid HCl?
- What is the pH of a mol/dm solution of the strong base NaOH at 25 °C?
- What is the pH of a mol/dm solution of the strong base NaOH at 25 °C?
- What is the pH of a mol/dm solution of the strong base NaOH at 25 °C?
- What is the pH of a mol/dm solution of the strong base NaOH at 25 °C?
- 25 cm of 0.5 mol/dm sodium hydroxide solution is neutralised by sulfuric acid of concentration 0.4 mol/dm according to 2NaOH + HSO → NaSO + 2HO. What volume of the acid…
- 25 cm of 0.5 mol/dm sodium hydroxide solution is neutralised by sulfuric acid of concentration 0.2 mol/dm according to 2NaOH + HSO → NaSO + 2HO. What volume of the acid…
- 20 cm of 0.2 mol/dm sodium hydroxide solution is neutralised by sulfuric acid of concentration 0.2 mol/dm according to 2NaOH + HSO → NaSO + 2HO. What volume of the acid…
- 20 cm of 0.5 mol/dm sodium hydroxide solution is neutralised by sulfuric acid of concentration 0.2 mol/dm according to 2NaOH + HSO → NaSO + 2HO. What volume of the acid…
- 30 cm of 0.5 mol/dm sodium hydroxide solution is neutralised by hydrochloric acid of concentration 0.1 mol/dm according to NaOH + HCl → NaCl + HO. What volume of the acid is needed?
- 25 cm of 0.5 mol/dm sodium hydroxide solution is neutralised by hydrochloric acid of concentration 0.2 mol/dm according to NaOH + HCl → NaCl + HO. What volume of the acid is needed?
- Which gas is given off when dilute hydrochloric acid reacts with magnesium?
- Which gas is given off when dilute hydrochloric acid is added to marble chips?
- Which of these is a weak acid?
- What colour does litmus paper turn in alkaline solution?