Engineering Chemistry

| Name and Formula of Acid | Formula Weight | Equivalent Weight | Weight % | Specific Gravity | Aprox. Strength |
|---|---|---|---|---|---|
| Acetic acid | 60.05 | 60.05 | 99 100 | 1.05 | 17.4 N |
| (CH 3COOH) | or | or | |||
| glacial | 99.5 | 17.4 M | |||
| Hydrochloric acid (HCl) | 36.46 | 36.46 | 36 | 1.18 | 11.6 ? 12 N or M |
| Hydrobromic acid (HBr) | 80.92 | 80.92 | 47.8 | 1.49 | 9 N or M |
| Hydrofluoric acid (HF) | 20.01 | 20.01 | 46 | 1.15 | 26.5 N or M |
| Hydriodic acid (Hl) | 127.91 | 127.91 | 47.475 | 1.50 | 5.5 N or M |
| Nitric acid (HNO 3) | 63.01 | 63.01 | 69.5 or 70 | 1.42 | 15.6 N ? 16 N or M |
| Phosphoric acid (H 3PO 4) | 98.00 | 85 | 1.69 | 40.5 N or 13.5 M | |
| Perchloric acid (HClO 4) | 100.46 | 70 | 1.66 | 9 N or 18 M | |
| Sulphuric acid (H 2SO 4) | 98.08 | 49.0 | 96 | 1.84 | 35.9 ? 36 N or 18.0 M |
| Acid | Equivalent Weight | Approx. Strength | Preparation of 1 liter of Solution |
|---|---|---|---|
| Acetic acid (CH 3COOH) | 60.05 | 5 N (143 ml acid per 500 ml because 58 ml/ 1 will give N solution). | Add 286 ml of glacial acid to distilled water to make up of volume of 1 liter. |
| Hydrochloric acid (HCl) | 36.46 | 5 N (85.5 ml/l will be N solution and 214 ml/500 ml will make 5 N solution). | Add 428 ml of concentrated HCl to water to make up the volume of 1 liter. |
| Nitric acid (HNO 3 |