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Which statement correctly describes the pH at each titration equivalence point? (A) The pH of both solutions will be the same - HSC - SSCE Chemistry - Question 16 - 2011 - Paper 1

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Which statement correctly describes the pH at each titration equivalence point? (A) The pH of both solutions will be the same. (B) One of the solutions will be neu... show full transcript

Worked Solution & Example Answer:Which statement correctly describes the pH at each titration equivalence point? (A) The pH of both solutions will be the same - HSC - SSCE Chemistry - Question 16 - 2011 - Paper 1

Step 1

One of the solutions will be neutral while the other will have a pH higher than 7.

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Answer

In titrations involving a strong acid and a strong base, at the equivalence point, the pH should ideally be neutral (pH 7). However, in cases involving weak acids and strong bases, the pH at the equivalence point will be above 7 due to the presence of the conjugate base of the weak acid in solution, which can create a basic medium. Therefore, option (B) is correct; one solution will be neutral (from a strong acid - weak base reaction) while the other solution will have a pH higher than 7.

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