Weight of 1 Liter of Various Gases measured under Standard Conditions
| Acetylene | 1.1614 |
| Air | 1.2923 |
| Ammonia | 0.7617 |
| Carbon dioxide | 1.9641 |
| Carbon monoxide | 1.2499 |
| Chlorine | 3.1650 |
| Hydrocyanic acid | 1.2036 |
| Hydrochloric acid | 1.6275 |
| Hydrogen | 0.08984 |
| Hydrosulphuric acid | 1.5211 |
| Methane | 0.7157 |
| Nitric oxide | 1.3410 |
| Nitrogen | 1.2501 |
| Nitrous oxide | 1.9677 |
| Oxygen | 1.4285 |
| Sulphur dioxide | 2.8596 |