Investigate how pH changes when a weak acid reacts with a strong base and when a strong acid reacts with a weak base Flashcards
1
Q
What is the method?
A
- measure initial pH
- add acid in small amounts, noting volume added
- stir mixture to equalise pH
- measure and record pH to 1 d.0
- when approaching the endpoint add in smaller volumes
- add until in exess
2
Q
How and why is the pH meter calibrated?
A
- in bufer soln of known pH
- pH meters can lose accuracy on storage
3
Q
What is controlled
A
temperature to maintain accuracy
