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80 mole percent of MgCl 2 is dissociated in aqueous solution. The vapour pressure of 1 . 0 molal aqueous solution of MgCl 2 at 38 o C is _____ mm Hg . (Nearest integer) Given: Vapour pressure of water at 38 o C is 50 mm Hg

Correct answer

0

Step-by-step solution

One molal solution means one of solute present in one kg of solvent. MgCl 2 ⇌ Mg 2 + + 2 Cl -         1                                 0                     0 1 - 0 . 8                     0 . 8               1 . 6 Hence, overall moles after dissociation = 2 . 6 The relative lo

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