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Exam
Olympiad workbook
Subject
NSEC
Chapter
Ionic Equilibrium

Olympiad workbook · NSEC · Ionic Equilibrium

The pH of a 1.0 × 10^ -3 ~mol ~L^ -1 solution of a weak acid HA is...

The pH of a 1.0×10−3 mol L−11.0 \times 10^{-3} \mathrm{~mol} \mathrm{~L}^{-1} solution of a weak acid HA is 3.60 . The dissociation constant of the acid is

Options

  1. A8.4×10−88.4 \times 10^{-8}
  2. B8.4×10−68.4 \times 10^{-6}
  3. C8.4×10−58.4 \times 10^{-5}
  4. D8.4×10−28.4 \times 10^{-2}

Correct answer

C. 8.4×10−58.4 \times 10^{-5}

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