The freezing point of an aqueous solution of NaHSO4 is −0.372 oC. Th – InterviewSolution

1.	The freezing point of an aqueous solution of NaHSO4 is −0.372 oC. The dissociation constant for the reaction HSO−4→H++SO−24 is 0.4. Find the concentration of NaHSO4 in mol/kg. [Kf for H2O=1.86 Kkgmol–1] (Assume dilute solution and take molality = molarity)
Answer» The freezing point of an aqueous solution of $N a H S O_{4}$ is $- 0.372^{o} C$ . The dissociation constant for the reaction $H S O_{4}^{-} \to H^{+} + S O_{4}^{- 2}$ is 0.4. Find the concentration of $N a H S O_{4}$ in mol/kg. [ $K_{f} f o r H_{2} O = 1.86 K k g m o l^{- 1}$ ] (Assume dilute solution and take molality = molarity)

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