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Two titrations were performed as shown below - VCE - SSCE Chemistry - Question 11 - 2011 - Paper 1
Question 11
Two titrations were performed as shown below. 25.0 mL of 0.10 M strong monoprotic acid 25.0 mL of 0.10 M weak monoprotic acid Which one of the following statement... show full transcript
Worked Solution & Example Answer:Two titrations were performed as shown below - VCE - SSCE Chemistry - Question 11 - 2011 - Paper 1
Step 1
Step 2
B. The weak acid will require a smaller volume of NaOH solution than the strong acid to reach the equivalence point.
Answer
This statement is also incorrect because while weak acids may adjust the volume due to their dissociation constants, they do not typically require less NaOH than strong acids.
Step 3
C. The weak acid will require the same amount of NaOH solution as the strong acid to reach the equivalence point.
Answer
This statement is correct. Both solutions contain the same molarity and volume, therefore they will require the same amount of NaOH to reach the equivalence point despite the differences in strength.
Step 4
D. The equivalence point in a titration of a weak monoprotic acid with NaOH solution cannot be determined.
Answer
This statement is incorrect because although the pH at the equivalence point may differ from that of strong acid-base titrations, the equivalence point itself can be determined.