pH Flashcards
1
Q
What does pH measure?
A
acidity
2
Q
What is the unit for pH?
A
-log10[H+]
3
Q
What is pH and equilibrium between?
A
H+ and OH-
4
Q
How many parts are there to the pH scale?
A
14
5
Q
What is neutral on the pH scale?
A
around 7
6
Q
What is the acidic range on the pH scale?
A
when you start dropping below 7
7
Q
What is the alkaline range on the pH scale?
A
start going above 7
8
Q
What has a pH of 0?
A
battery acid
9
Q
What has a pH of 1?
A
stomach acid
10
Q
What has a pH of 2?
A
lemon juice
11
Q
What has a pH of 3?
A
orange juice
12
Q
What has a pH of 4?
A
acid rain
13
Q
What has a pH of 5?
A
black coffee
14
Q
What has a pH of 6?
A
urine
15
Q
What has a pH of 7?
A
‘pure’ water