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MMLU-Pro / 4162 / 0.0025 mol of a weak, monoprotic acid is dissolved in 0.250 L of distilled…

Problem

Answer published by the source. Consult the official source to check your work against its answer.

question

0.0025 mol of a weak, monoprotic acid is dissolved in 0.250 L of distilled water. The pH was then measured as 4.26. What is the pKa of this weak acid?

category

chemistry

options

  1. 3.80
  2. 5.75
  3. 8.52
  4. 9.25
  5. 6.52
  6. 8.75
  7. 4.26
  8. 6.00
  9. 7.92
  10. 7.00

src

ori_mmlu-high_school_chemistry

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