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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 neutr... 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 a typical acid-base titration, the equivalence point is reached when the amount of acid equals the amount of base in a solution. Depending on the strength of the acids and bases involved, the resulting solution at the equivalence point may not always be neutral. For example, if a strong acid is titrated with a strong base, the pH at the equivalence point will be neutral (around 7).

However, if a strong base is titrated with a weak acid, the pH at the equivalence point will be greater than 7 due to the presence of excess hydroxide ions. Thus, in this scenario, one solution can have a neutral pH, while the other has a pH higher than 7. Consequently, the correct statement is (B) as it describes this scenario accurately.

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