yeah think of it as when all of the acid has reacted with sufficient base
and sorry if i didn't clarify enough, not always neutral if strong acid weak base, pH will be a little under 7 like 6 or something etc
(edited 8 years ago)
Original post by emmalav
Is the equivalence point not the point at which the solution is neutral ??
Hayden is wrong. It depends, if you are titrating a strong acid with a strong base then it will be at pH 7. If it's a weak acid with a strong base then it will be above pH 7, if it's a strong acid and a weak base then it will be below pH 7
Original post by langlitz
Hayden is wrong. It depends, if you are titrating a strong acid with a strong base then it will be at pH 7. If it's a weak acid with a strong base then it will be above pH 7, if it's a strong acid and a weak base then it will be below pH 7
The equivalence point for a strong acid and strong base isn't strictly 7. It is a large range, normally from 4 to 10, this is because [H+] changes from something positive to zero which is a large relative change and pH is logarithmic. Hence a large change in pH is seen near equivalence. This is because you get mutual base protonation and deprotonation near equivalence which has a large effect on pH since [H+] fluctuates about 0
Original post by langlitz
Hayden is wrong. It depends, if you are titrating a strong acid with a strong base then it will be at pH 7. If it's a weak acid with a strong base then it will be above pH 7, if it's a strong acid and a weak base then it will be below pH 7
yeah i may have explained it pretty badly, the rule of 2 is what i was trying to say, i just gave an example
Quick Reply
Related discussions
- Indicator colour question.
- My dad doesn’t wash his hands after pouring bleach
- AQA A-Level Chemistry Paper 3 (7405/3) - 23rd June 2023 [Exam Chat]
- Chemistry - acids
- Public Health ST1 Programme 2024 Entry Thread
- Acids and Bases
- GCSE Chemistry
- biology enzymes
- GCSE Chemistry
- pH of water
- Public Health ST1 Programme 2023 Entry Thread
- ocr chemistry acid question
- I am an international Student from USA. What is AAA grades?
- I feel like I failed educationally and need a clear sense of direction and advice
- GRG Year 11
- Chem alevel help
- A-Level chemistry
- UCAS points BTEC Applied Science/Biomedical Science
- GP or PUBLIC HEALTH
- Buffer calculation question A level chemistry help
Latest
Trending
Last reply 6 days ago
Im confused about this chemistry question, why does it form these productsTrending
Last reply 6 days ago
Im confused about this chemistry question, why does it form these products
