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NTA Abhyas NEET2020ChemistryIonic EquilibriumPractice

Dissociation constants of C H 3 C O O H and N H 4 O H are 1.8 × 10 – 5 each at 25 ° C . The equilibrium constant for the reaction of C H 3 C O O H and N H 4 O H will be -

Options

  1. A1.8 × 1.8 10 4
  2. B1.8 1 0 – 9
  3. C1.8 × 1.8 × 10 4
  4. D3.24 × 10 − 10

Correct answer

C. 1.8 × 1.8 × 10 4

Step-by-step solution

CH 3 COOH + NH 4 OH ⇌ CH 3 COO - + NH 4 + + H 2 O K h = CH 3 COO – NH 4 + CH 3 COOH NH 4 OH = K a K b K w = 1.8 2 × 10 4

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