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| 1. |
Molecular mass of NaCl determine by osmotic pressure measurement is found to be half of the actual value. Account for it . |
| Answer» SOLUTION :It is due to DISSOCIATION of NaCl to `Na^+` and `Cl^(-1)` ions. So the colligative properties will be almost double and HENCE the molecular mass CALCULATED will be almost half of the actual molecular mass. | |