Need help on titration multiple choice question

[preliminary17hsc18]

Hi all,
Just need some quick help on this question please!

A student performs a titration between sodium hydroxide and acetic acid. What is most appropriate
pH range that the equivalence point is expected to be on a titration curve?
(A) Between 8.0 and 14.0
(B) Between 6.0 and 8.0
(C) Between 1.0 and 6.0
(D) Between 0.0 and 1.0

[sweetiepi]

Hi all,
Just need some quick help on this question please!

A student performs a titration between sodium hydroxide and acetic acid. What is most appropriate
pH range that the equivalence point is expected to be on a titration curve?
(A) Between 8.0 and 14.0
(B) Between 6.0 and 8.0
(C) Between 1.0 and 6.0
(D) Between 0.0 and 1.0

Hey there!
Going by this rough titration curve:


We can see that the equivalence point is around pH=7-9. This already rules out options C) and D), purely because they are too acidic. pH 14 is quite high a pH to have an equivalence point at, so I'm also inclined to rule out option A). That leaves option B), which is roughly central to where the equivalence point on the titration curve is, so it is the most sensible answer imo.

Hope this helps!

Disclaimer: It may be the other option I was tossing up initially, tired-exam brain is kicking in if I'm off the mark, sorry <3

[KT Nyunt]

Hi all,
Just need some quick help on this question please!

A student performs a titration between sodium hydroxide and acetic acid. What is most appropriate
pH range that the equivalence point is expected to be on a titration curve?
(A) Between 8.0 and 14.0
(B) Between 6.0 and 8.0
(C) Between 1.0 and 6.0
(D) Between 0.0 and 1.0

I'm sorry if this confuses things but I want to bring this up so I can clarify my own understanding. I would've thought that the answer is (A). My reasoning being: sodium hydroxide is a strong base, whereas acetic acid is a weak acid. Thus, wouldn't the equivalence point be somewhere on the alkaline side? (B) would be the equivalence point for a acid-base reaction between a strong base and a strong acid (or a weak base and a weak acid), where the equivalence point is near pH neutral.

Someone please correct me if I'm wrong....

[RuiAce]

I'm sorry if this confuses things but I want to bring this up so I can clarify my own understanding. I would've thought that the answer is (A). My reasoning being: sodium hydroxide is a strong base, whereas acetic acid is a weak acid. Thus, wouldn't the equivalence point be somewhere on the alkaline side? (B) would be the equivalence point for a acid-base reaction between a strong base and a strong acid (or a weak base and a weak acid), where the equivalence point is near pH neutral.

Someone please correct me if I'm wrong....

Yeah like, it should be A. Because basic range and all.

After discussing it briefly, perhaps the horrifying thing with A is that the indicator's range stretches a bit too far. 14 is completely unnecessary - it really should be truncated somewhere around 12.5. A 6-8 can potentially be used as well.