1.11: Acid and Bases, Neutralization Flashcards
(10 cards)
1
Q
pH Scale
A
logarithmic scale (10 fold)
- 10 to the power of (# of increases) - add that many zeros
- Shows acidity or basicity of a solution
2
Q
What is the range of pH scale?
A
0-14 range
- 0-6 = acidic
- 7 = neutral
- 6-14 = basic
3
Q
Common pH Indicators
A
A chemical that changes colour depending on whether an acid or base is added
4
Q
Phenolphthalein (colourless)
A
Acid: Cloudy
Base: Pink
5
Q
Bromothymol blue
A
Acid: Yellow
Base: Blue
6
Q
Methyl orange
A
Acid: Red
Base: Yellow
7
Q
Red and Blue litmus
A
Acid: Red
Base: Blue
8
Q
Neutralization or Acid/Base Reactions
A
- occurs between an acid and a base
- solutions cancel out each other
Forms water because acids have hydrogen and bases have hydroxide
9
Q
What indicates acidity in chemical?
A
hydrogen
10
Q
What indicates basicity in chemical?
A
hydroxide
