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  • 13-03-2024
  • Chemistry
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The Ka of hydrofluoric acid (HF) at 25.0°C is 6.8 × 10⁻⁴. What is the pH of a 0.45 M aqueous solution of HF?
a) 3.34
b) 4.45
c) 2.66
d) 5.57

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