Calculate the molality of the solution of a nonvolatile solute if it freezes at $-0.36 \ ^{\circ}C$. [Given: $K_{f}$ for solvent $= 1.86 \ K \ kg \ mol^{-1}$]
- A$0.218 \ mol \ kg^{-1}$
- B$0.193 \ mol \ kg^{-1}$
- C$0.401 \ mol \ kg^{-1}$
- D$0.520 \ mol \ kg^{-1}$
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