Suggest4 marksStandard
Ammonia, , is commonly used as a cleaning agent in aqueous solution. Suggest why ammonia solution is described as a weak alkali.
CAIE A Level Chemistry 9701 · Equilibria
Equilibria: suggest question
How this question is marked
4 marks, so the mark scheme is looking for about 4 separate creditworthy points. Making the same point twice in different words earns it once.
Suggest means: Apply what you know to an unfamiliar situation. There may be more than one acceptable answer. Reason from the principle you have learned to the new context, and say which principle you are using.
More Equilibria questions
- 4 marks · A student measures the pH of separate 0.1 mol dm⁻³ solutions of hydrochloric acid, HCl, and ethanoic acid, CH3COOH, using a pH meter. The…
- 5 marks · Four species are placed in separate beakers of water: HCl, NH3, CH3COOH, NaOH For each species, state whether it acts as a Brønsted–Lowry…
- 7 marks · A student is studying buffer solutions and solubility equilibria. (a) Describe how a buffer solution can be prepared using ethanoic acid…
- 5 marks · In the blood, carbon dioxide dissolves and reacts with water to form carbonic acid, H2CO3, which partially dissociates: H2CO3(aq) ⇌ H+(aq)…
- 7 marks · A 1.0 dm³ closed vessel contains the following equilibrium at a fixed temperature: 2SO2(g) + O2(g) ⇌ 2SO3(g) The total pressure in the…
- 7 marks · Two separate gas-phase equilibria are set up in closed containers. In container 1, PCl5(g) ⇌ PCl3(g) + Cl2(g). In container 2, N2O4(g) ⇌…
Written by Markquill to follow the Cambridge International syllabus. Markquill is independent and is not affiliated with or endorsed by Cambridge International.