Question

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2. For a weak acid (e.g., CH.COOH) that is titrated with a strong base, (e.g., NaOH), what species (ions and/or molecules) are present in the solution at the equivalence point? 3. For a weak acid (e.g. CH3COOH) that is titrated with a strong base (e.g., NaOH), what species (ions and/or molecules) are present in the solution at the half-equivalence point?

Answer 1

2. when weak acid is titrated with a strong base, at the equivalence point solution contains CH₃COONa salt and H₂O, or you may say that salt is remaining as CH₃COO^- and Na⁺ ions

3. at half equivalence point half of the moles of CH₃COOH is neutralized by NaOH, so in solution, H₃O⁺ ions are present, CH₃COONa salt is present