Environmental Engineering Problems and Solutions

| Name | Formula | Molecular Weight | Equivalent Weight |
|---|---|---|---|
| Aluminum Sulfate | Al 2(SO 4) 3 18H 2O | 666.4 | 111.0 |
| Aluminum Sulfate | Al 2(SO 4) 3 | 342.1 | 57.0 |
| Aluminum Hydroxide | Al(OH) 3 | 78.0 | 26.0 |
| Bicarbonate | HCO 3 ? | 61.0 | 61.0 |
| Calcium | Ca | 40.1 | 20.0 |
| Calcium Bicarbonate | Ca(HCO 3) 2 | 162.1 | 81.0 |
| Calcium Carbonate | CaCO 3 | 100.0 | 50.0 |
| Calcium Hydroxide | Ca(OH) 2 | 74.1 | 37.0 |
| Calcium Oxide | CaO | 56.1 | 28.0 |
| Calcium Sulfate | CaSO 4 | 136.2 | 68.1 |
| Carbon Dioxide | CO 2 | 44.0 | 22.0 |
| Ferrous Sulfate | FeSO 4 7H 2O | 278.0 | 139.0 |
| Ferric Chloride | FeCl 3 | 162.2 | 54.1 |
| Ferric Sulfate | Fe 2(SO 4) 3 | 400.0 | 66.7 |
| Hydrogen Sulfide | H 2S | 34.1 | 17.0 |
| Hydrochloric Acid | HCl | 36.5 | 36.5 |
| Magnesium | Mg | 40.3 | 20.1 |
| Nitric Acid | HNO 3 | 63.0 | 63.0 |
| Sodium | Na | 23.0 | 23.0 |
| Sodium Bicarbonate | NaHCO 3 | 84.0 | 84.0 |
| Sodium Carbonate | Na 2CO 3 | 106.0 | 53.0 |
| Sodium Hydroxide | NaOH | 40.0 | 40.0 |
| Sulfuric Acid | H 2SO 4 | 98.1 | 49.0 |
| Sulfate | SO 4 ?2 | 96.0 | 48.0 |