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NTA Abhyas NEET2020ChemistryIonic EquilibriumPractice

Calculate the p H of C H 3 O O N a at 25 o if the concentration of C H 3 C O O N a is 0.01 M . (Given p K a of acetic acid is 4.74 ).

Options

  1. A3.37
  2. B4.37
  3. C4.74
  4. D0.474

Correct answer

A. 3.37

Step-by-step solution

p H = 7 + 1 2 p k a + 1 2 l o g c = 7 + 1 2 × 4.74 + 1 2 log ⁡ 10 - 2 ∴ p H = 8.37

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