3.1.12.5 pH Curves, Titrations and Indicators Flashcards
1
Q
What is a titration curve?
A
A curve produced when a base is titrated against an acid and the pH is monitored as the base is added
The starting and final pHs depend on the pH of the acid and bases involved
2
Q
What does the rapid change in a titration curve show?
A
It shows the volume needed for the equivalence
3
Q
What does the equivalence volume depend on?
A
Strength of the acid / base
Salt formed
4
Q
What are indicators?
A
Weak acids or bases which give a measure of pH by their colour
5
Q
What does the choice of indicator depend on?
A
The pH of the equivalence point
The colour of the indicator needs to change as the pH ois close or equal to the equivalence point
