संयुग्मी अम्ल-क्षार कैलकुलेटर — सूत्र

Conjugate Acid-Base Relationship

Formula

Ka × Kb = Kw

Therefore:

  • Ka = Kw / Kb (find Ka of conjugate acid from Kb of base)
  • Kb = Kw / Ka (find Kb of conjugate base from Ka of acid)

    • At 25°C, Kw = 1.0 × 10⁻¹⁴. This means pKa + pKb = 14.

    हल किया गया उदाहरण

    Ammonia has Kb = 1.8 × 10⁻⁵. Find Ka of its conjugate acid NH₄⁺.

    1. Ka = Kw / Kb
    2. Ka = 1.0 × 10⁻¹⁴ / 1.8 × 10⁻⁵
    3. Ka = 5.56 × 10⁻¹⁰
    4. pKa = -log₁₀(5.56 × 10⁻¹⁰) = 9.26