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Which statement best describes the equivalence point in a titration between a strong acid and a strong base? (A) The point at which the first sign of a colour change occurs (B) The point at which equal moles of acid and base have been added together (C) The point at which equal moles of H⁺ ions and OH⁻ ions have been added together (D) The point at which the rate of the forward reaction equals the rate of the reverse reaction - HSC - SSCE Chemistry - Question 9 - 2006 - Paper 1
Question 9
Which statement best describes the equivalence point in a titration between a strong acid and a strong base? (A) The point at which the first sign of a colour chang... show full transcript
Worked Solution & Example Answer:Which statement best describes the equivalence point in a titration between a strong acid and a strong base? (A) The point at which the first sign of a colour change occurs (B) The point at which equal moles of acid and base have been added together (C) The point at which equal moles of H⁺ ions and OH⁻ ions have been added together (D) The point at which the rate of the forward reaction equals the rate of the reverse reaction - HSC - SSCE Chemistry - Question 9 - 2006 - Paper 1
Step 1
The point at which equal moles of H⁺ ions and OH⁻ ions have been added together
Answer
The equivalence point in a titration involving a strong acid and a strong base is defined as the moment when the number of moles of hydrogen ions (H⁺) from the acid equals the number of moles of hydroxide ions (OH⁻) from the base. At this point, a complete neutralization reaction occurs, resulting in the formation of water and a salt.