Unit One, Chapter Thirteen - Indicators and Buffers Flashcards
1
Q
What is a buffer solution
A
A solution in which the pH remains approximately constant when small amounts of acid or base are added
2
Q
An acid buffer consists of…
A
A solution of a weak acid and one of its salts
3
Q
A basic buffer consists of…
A
A solution of a weak base and one of its salts
4
Q
What does pH = pKa - log10[acid]/[salt] represent
A
The acid dissociation constant
5
Q
How can we calculate the desired composition of an acid buffer solution
A
From the desired pH and the acid dissociation constant
6
Q
Indicators are…
A
weak acids
