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  • 23-08-2022
  • Chemistry
contestada

A buffer consists of 0.50 M NaH₂PO4 and 0.40 M Na₂HPO₄. Phosphoric acid is a triprotic acid ( Ka1 = 7.2 × 10⁻³, Ka2 = 6.3 × 10⁻⁸ , and Ka3 = 4.2 × 10⁻¹³).(a) Which Kₐ value is most important to this buffer?

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