Calculate the molality of the solution containing a nonvolatile solute if the boiling point elevation of the solution is $0.39 \ K$.
[$K_{b}$ of water $= 0.52 \ K \ kg \ mol^{-1}$]
[$K_{b}$ of water $= 0.52 \ K \ kg \ mol^{-1}$]
- A$0.52 \ mol \ kg^{-1}$
- B$0.65 \ mol \ kg^{-1}$
- C$0.75 \ mol \ kg^{-1}$
- D$0.86 \ mol \ kg^{-1}$
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