The diagram below represents the titration curve for the reaction between a particular acid and a particular base - VCE - SSCE Chemistry - Question 6 - 2014 - Paper 1
Question 6
The diagram below represents the titration curve for the reaction between a particular acid and a particular base.
The equation that best represents the reaction de... show full transcript
Worked Solution & Example Answer:The diagram below represents the titration curve for the reaction between a particular acid and a particular base - VCE - SSCE Chemistry - Question 6 - 2014 - Paper 1
Step 1
Identify the Titration Curve
96%
114 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
The titration curve indicates the pH change as a function of the volume of titrant added. Notably, there is a sharp increase in pH around the equivalence point, which is characteristic of a strong acid-strong base titration.
Step 2
Assess the Given Reactions
99%
104 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
Review the four provided reactions against the context of the titration curve. The characteristic steep rise in pH suggests a complete neutralization reaction at the equivalence point.
Step 3
Choose the Best Reaction
96%
101 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
Upon examination, the reaction that matches the steep rise in pH in the provided titration curve is likely the neutralization of a weak acid (CH3COOH) with a strong base (NaOH) as represented by:
4. CH3COOH(aq) + NaOH(aq) → CH3COONa(aq) + H2O(l)
This reflects the expected behavior in a titration where a weak acid is neutralized by a strong base, leading to a noticeable pH change.
