What is the pH of a mol/L solution of a weak monoprotic acid with mol/L? (Assume the dissociation is small.)

Answer and explanation

Correct answer: C. 3

  1. Step 1: mol/L.
  2. Step 2: .
Answer
3.
Why not the others: 2: the acid is treated as strong. 4: the pH is set equal to . 6: the exponents are added without halving.

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