Download Mixtures and Solutions

pH lab
pH notes
pg. 20
pg. 21
 pH-
the measure of how acidic
or basic a solution is. It is based
on the hydrogen ion.

When water is ionized:
H2O  H+ and OH
acid
neutral
O
7
strong-------weak
base
14
weak---------strong
 Acids-
1. Forms H+ ions in water.
2. Often taste sour.
3. Often corrosive.
 Bases-
 Neutral-
1. Form OHˉ ions in water.
2. Often taste bitter.
3. Often feel slippery.
not acidic or basic
ex. pure water is pH 7
Solution
Dr. Pepper
LV tap water
Vinegar
H2O2
Gatorade
Shampoo
Coffee
Liquid soap
Your pH guess
Actual pH
The average American today drinks over 600 servings of pop a year.***
Product
Acid
Low=BAD
Sugar
per 12 oz
Pure Water
Barq's
Diet Coke
Mountain Dew
7.00 (neutral)
4.61
3.39
3.22
0.0
10.7 tsp.
0.0
11.0 tsp.
Gatorade
Coke Classic
Pepsi
Sprite
Diet 7-Up
2.95
2.63
2.49
3.42
3.67
3.3 tsp
9.3 tsp.
9.8 tsp.
9.0
0.0
Diet Dr. Pepper
3.41
0.0
Surge
Gatorade
3.02
2.95
10.0
3.3
Hawaiian Fruit Punch
2.82
10.2
Orange Minute Maid
2.80
11.2
Dr. Pepper
BATTERY ACID
2.92
1.00
9.5
0.0
Source: Minnesota
Dental Association *
The threshold pH for
enamel dissolution is
5.5.