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NTA Abhyas JEE Main2020ChemistryIonic EquilibriumPractice

A 50 mL solution of pH = 1 is mixed with a 50 mL solution of pH = 2 . The pH of the mixture is

Options

  1. A0.86
  2. B1.26
  3. C1.76
  4. D2.26

Correct answer

B. 1.26

Step-by-step solution

V f = 100 m l C f = 1 0 - 1 × 50 + 1 0 - 2 × 50 100 = 0.055 M p H = - log ⁡ 0.055 = 1.26

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