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Olympiad workbookNSECIonic Equilibrium

The pH of the solution produced by complete consumption of 10 mL of 0.4 M NaOH to ' x ' mL of 0.5 MCH ₃ COOH was found to be 4.57. The value of ^ x ^ ( mL ) is ( . Given - K _ a of . CH ₃ COOH =1.8 10⁻⁵ ) .

Options

  1. A12.0
  2. B10.4
  3. C19.8
  4. D6.5

Correct answer

C. 19.8

Step-by-step solution

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