Equilibrium – pH, Buffer Solutions, Solubility Product, Common Ion Effect
Chemistry · Grade 11 · Week 21 · 25 questions
Equilibrium is a core Grade 11 chemistry chapter covering pH, Buffer Solutions, Solubility Product, and Common Ion Effect. A strong base in these ideas makes organic, inorganic, and physical chemistry much more approachable later.
What you'll practise
- Calculate pH
- Identify Buffer Solutions
- Predict Solubility Product
- Apply equilibrium concepts to NCERT exercise and exemplar problems
All 25 questions in this Equilibrium – pH, Buffer Solutions, Solubility Product, Common Ion Effect quiz
Grade 11 Chemistry — Equilibrium – pH, Buffer Solutions, Solubility Product, Common Ion Effect: 25 practice questions with instant scoring and explanations.
- pH =
- pH of pure water at 25°C:
- pH of 0.01 M HCl:
- pH of 0.1 M NaOH:
- pOH =
- pH + pOH =
- pH below 7 is:
- pH above 7 is:
- Buffer solution resists change in:
- Acidic buffer: weak acid +
- Basic buffer: weak base +
- Henderson-Hasselbalch equation:
- Buffer works best when:
- Solubility product Ksp for AgCl:
- Ksp for CaF₂:
- Solubility s of AgCl: Ksp =
- Solubility s of CaF₂: Ksp =
- Common ion effect: adding Cl⁻ to AgCl solution:
- If ionic product IP > Ksp:
- If IP < Ksp:
- If IP = Ksp:
- Hydrolysis of salt of strong acid + weak base (e.g. NH₄Cl):
- Hydrolysis of salt of weak acid + strong base (e.g. CH₃COONa):
- Salt of strong acid + strong base (NaCl):
- pH of 10⁻⁸ M HCl is: