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Solubility Equilibria of Sparingly Soluble Salts

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Solubility Equilibria of Sparingly Soluble Salts Class 11th

What is the pH of CH3COO–NH4+ salt?

            Given Ka of CH3COOH = 1.8 * 10–6

                       Kb of NH4OH = 1.8 * 10–6

            (At 25°C)
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alok kumar singh

Contributor-Level 10

p H = p K w + p K a ? p K b 2

pKa = pKb

p H = p K w 2 = 7

New answer posted

2 months ago

Solubility Equilibria of Sparingly Soluble Salts Class 11th

If the solubility product of AB₂ is 3.20 * 10⁻¹¹ M³, then the solubility of AB₂ in pure water is _____ * 10⁻⁴ mol L⁻¹. [Assuming that neither kind of ion reacts with water]
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alok kumar singh

Contributor-Level 10

(x/m) = k (P)¹/?
log (x/m) = log k + (1/n) log P
Slope = 1/n = 2 So n = ½
Intercept ⇒ log k = 0.477 So k = Antilog (0.477) = 3
So (x/m) = k (P)¹/? = 3 [0.04]² = 48 * 10?

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