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80 mole percent of mgCl(2) is dissociate...

`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^(@)C` is ______mm Hg. (Nearest integer)
Given: Vapor pressure of water at `38^(@)C` is `50 mm Hg`

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