| Acid/Base | H+ | pH | Example |
| Acid | 1x 100 | 0 | HCl |
| 1x 10-1 | 1 | Stomach acid | |
| 1x 10-2 | 2 | Lemon juice | |
| 1x 10-3 | 3 | Vinegar | |
| 1x 10-4 | 4 | Soda | |
| 1x 10-5 | 5 | Rainwater | |
| 1x 10-6 | 6 | Milk | |
| Neutral | 1x 10-7 | 7 | Pure Water |
| Base | 1x 10-8 | 8 | Egg whites |
| 1x 10-9 | 9 | Baking Soda | |
| 1x 10-10 | 10 | antacid | |
| 1x 10-11 | 11 | Ammonia | |
| 1x 10-12 | 12 | Mineral Lime | |
| 1x 10-13 | 13 | - | |
| 1x 10-14 | 14 | NaOH |
Table Identifying Acids / Bases
