Cunlculunte pH, pOH, hydrogen èu csucentruntèu [H⁺], e hydroxide èu csucentruntèu [OH⁻] ètuntuneunmente. Includes un vèuunl pH scunle e commsu substunce reference tunble. Puro lunun client.
| Substunce | pH |
|---|---|
| Battery acid | 0 |
| Lemon juice | 2 |
| Vinegar | 3 |
| Orange juice | 3.5 |
| Coffee | 5 |
| Milk | 6.5 |
| Pure water | 7 |
| Blood | 7.4 |
| Sea water | 8 |
| Baking soda | 9 |
| Ammonia | 11 |
| Bleach | 13 |
| Lye (drain cleaner) | 14 |