Explore Air

Acid Rain Lesson Plan

Table 1: Approximate pH of Some Common Substances


Items pH Items II pH4
Apples 2.9 - 3.3 Limes 1.3 - 2.0
Asparagus 5.4 - 5.7 Milk of Magnesia 10.5
Battery Acid 1.0 Milk, Cow 6.4 - 6.8
Beans 5.0 - 6.0 Olives 3.6 - 3.8
Beets 4.9 - 5.6 Oranges 3.0 - 4.0
Bread, White 5.0 - 6.0 Peas 5.8 - 6.0
Beers 4.0 - 5.0 Peaches 3.4 - 3.6
Blackberries 3.2 - 3.6 Pears 3.6 - 4.0
Cider 2.9 - 3.3 Pickles, Dill 3.2 - 3.5
Crackers 7.0 - 8.5 Pickles, Sour 3.0 - 3.5
Cabbage 5.2 - 5.4 Pimento 4.7 - 5.2
Carrots 4.9 - 5.2 Plums 2.8 - 3.0
Corn 6.0 - 6.5 Pumpkin 4.8 - 5.2
Cherries 3.2 - 4.1 Raspberries 3.2 - 3.7
Dates 6.2 - 6.4 Rhubarb 3.1 - 3.2
Flour, Wheat 6.0 - 6.5 Sauerkraut 3.4 - 3.6
Grapes 3.5 - 4.5 Salmon 6.1 - 6.3
Gooseberries 2.8 - 3.1 Shrimp 6.8 - 7.0
Ginger Ale 2.0 - 4.0 Spinach 5.1 - 5.7
Hominy (Lye) 6.9 - 7.9 Squash 5.0 - 5.3
Human Blood Plasma 7.3 - 7.5 Strawberries 3.1 - 3.5
Human Duadenal Contents 4.8 - 8.2 Sweet Potatoes 5.3 - 5.6
Human Feces 4.6 - 8.4 Tomatoes 4.1 - 4.4
Human Gastric Contents 1.0 - 3.0 Tuna 5.9 - 6.1
Human Milk 6.6 - 7.6 Turnips 5.2 - 5.5
Human Saliva 6.0 - 7.6 Vinegar 2.4 - 3.4
Human Spinal Fluid 7.3 - 7.5 Water, Mineral 6.2 - 9.4
Human Urine 4.8 - 8.4 Water, Sea 8.0 - 8.4
Jams, Fruit 3.5 - 4.0 Water, Distilled (=air) 5.8
Jellies, Fruit 3.0 - 3.5 Water, Distilled (No CO2) 6.8 - 7.0
Lemons 2.2 - 2.4 Wines 2.8 - 3.8

updated on 04/24/2006  I   http://www2.nature.nps.gov/air/edu/Lessons/Table1ApproxpH.cfm   I  Email: Webmaster