Which statement about the volume of base required to reach the equivalence point is correct?
(A) The weak acid will require the same volume of base as the strong acid - HSC - SSCE Chemistry - Question 15 - 2011 - Paper 1
Question 15
Which statement about the volume of base required to reach the equivalence point is correct?
(A) The weak acid will require the same volume of base as the strong aci... show full transcript
Worked Solution & Example Answer:Which statement about the volume of base required to reach the equivalence point is correct?
(A) The weak acid will require the same volume of base as the strong acid - HSC - SSCE Chemistry - Question 15 - 2011 - Paper 1
Step 1
A) The weak acid will require the same volume of base as the strong acid.
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
This statement is generally incorrect because weak acids do not ionize completely in solution, hence requiring a different volume of base to reach the equivalence point compared to strong acids.
Step 2
B) The weak acid will require a larger volume of base than the strong acid.
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
This statement can be true in some contexts where the ionization of the weak acid affects the amount of titrant needed. However, it lacks consideration of the equivalence point and stoichiometry.
Step 3
C) The weak acid will require a smaller volume of base than the strong acid.
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
This statement is typically not accurate. Weak acids usually require a larger volume of base due to their incomplete dissociation.
Step 4
D) The volume of base required will depend on the molar mass of the acid used.
98%
120 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
This statement is misleading. The volume of base required to reach the equivalence point depends more significantly on the strength of the acid and its concentration rather than the molar mass.
