Class 11ChemistryEquilibrium
Ionic Equilibrium and pH
Weak acids partially dissociate: HA ⇌ H⁺ + A⁻. Ka = [H⁺][A⁻]/[HA]. pH = -log[H⁺]. pOH = -log[OH⁻]. pH + pOH = 14 at 25°C. Strong acids: HCl, H₂SO₄, HNO₃ (fully dissociate). Weak acids: CH₃COOH, H₂CO₃ (partially dissociate). Buffer: resists pH change (weak acid + its salt).
10 examples
Concept check 1
For Class 11 Chemistry, explain or solve a ionic equilibrium and ph question from the chapter "Equilibrium". Focus on concept check and show the working clearly.
Definition to application 2
For Class 11 Chemistry, explain or solve a ionic equilibrium and ph question from the chapter "Equilibrium". Focus on definition to application and show the working clearly.
Formula warm-up 3
For Class 11 Chemistry, explain or solve a ionic equilibrium and ph question from the chapter "Equilibrium". Focus on formula warm-up and show the working clearly.
Reasoning practice 4
For Class 11 Chemistry, explain or solve a ionic equilibrium and ph question from the chapter "Equilibrium". Focus on reasoning practice and show the working clearly.
Board-style short answer 5
For Class 11 Chemistry, explain or solve a ionic equilibrium and ph question from the chapter "Equilibrium". Focus on board-style short answer and show the working clearly.
Mistake correction 6
For Class 11 Chemistry, explain or solve a ionic equilibrium and ph question from the chapter "Equilibrium". Focus on mistake correction and show the working clearly.
Visual interpretation 7
For Class 11 Chemistry, explain or solve a ionic equilibrium and ph question from the chapter "Equilibrium". Focus on visual interpretation and show the working clearly.
Applied word problem 8
For Class 11 Chemistry, explain or solve a ionic equilibrium and ph question from the chapter "Equilibrium". Focus on applied word problem and show the working clearly.
Revision challenge 9
For Class 11 Chemistry, explain or solve a ionic equilibrium and ph question from the chapter "Equilibrium". Focus on revision challenge and show the working clearly.
Exam recap 10
For Class 11 Chemistry, explain or solve a ionic equilibrium and ph question from the chapter "Equilibrium". Focus on exam recap and show the working clearly.