Question

At the equivalence point for a weak acid-strong base titration an equal number of moles of OH- and H+ have reacted, producing a solution of water and salt. What affects the pH at the equivalence point for a weak-acid/strong-base titration? The basicity of the salt anion The acidity of the salt cation The auto-ionization of water None of these

Answer 1

Answer: The basicity of the salt anion

Step-by-step explanation:

All the weak acid is neutralized at the equivalence point and transferred to its conjugate base (number of moles of H+ = increased number of moles of OH–). Therefore the solution produced is weakly alkaline and the pH of the equivalence point will be greater than 7.