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Manipal MET2021ChemistryIonic Equilibrium

Solution of 0.1 ~N NH ₄ OH and 0.1 NH ₄ Cl has pH 9.25. Then pK K _b of NH ₄ OH is :

Options

  1. A9.25
  2. B4.75
  3. C3.75
  4. D8.25

Correct answer

B. 4.75

Step-by-step solution

aligned & pOH = p K_b+ [ salt ] [ base ] =p K_b+0 & pK _b= pOH =14- pH =14-9.25=4.75 aligned

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