Maharashtra Board Class 12 Chemistry Notes Chapter 3 Ionic Equilibria

By going through these Maharashtra State Board 12th Science Chemistry Notes Chapter 3 Ionic Equilibria students can recall all the concepts quickly.

Maharashtra State Board 12th Chemistry Notes Chapter 3 Ionic Equilibria

→ Formulae on Ostwald’s dilution law:

→ K_w = [H₃O⁺] × [OH^–], at 25°C K_w = 1 × 10^-14

→ pH = -log₁₀[H⁺]; pOH = -log₁₀[OH^–]

→ pH + pOH = 14

→ Acidic buffer solution: pH = PK_a + log₁₀ \(\frac { [salt] }{ [acid] }\)

→ Basic buffer solution: pOH = pK_b + log₁₀ \(\frac { [salt] }{ [acid] }\)

→ PK_a = – log₁₀ K_a; pK_b = – log₁₀ K_b

→ Solubility product:

k_sp = (xs)^x (ys)^y = x^xy^y x (S)^x+y