Which of the following aqueous solutions exhi | vedclass

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(B) The freezing point depression is given by the formula $\Delta T_f = i 	imes K_f 	imes m$, where $i$ is the van't Hoff factor and $m$ is the mola

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$0.05 \, m \, MgSO_4$

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(B) The freezing point depression is given by the formula $\Delta T_f = i 	imes K_f 	imes m$, where $i$ is the van't Hoff factor and $m$ is the molality. Assuming complete dissociation, $i$ equals the number of ions produced per formula unit.For $A$: $0.1 \, m \, NaClO_4 ightarrow i = 2$, so $\Delta T_f \propto 0.1 	imes 2 = 0.2$.For $B$: $0.05 \, m \, MgSO_4 ightarrow i = 2$, so $\Delta T_f \propto 0.05 	imes 2 = 0.1$.For $C$: $0.08 \, m \, AlPO_4 ightarrow i = 2$, so $\Delta T_f \propto 0.08 	imes 2 = 0.16$.For $D$: $0.06 \, m \, Al_2(SO_4)_3 ightarrow i = 5$, so $\Delta T_f \propto 0.06 	imes 5 = 0.3$.Comparing the values, $0.1$ is the lowest, which corresponds to option $B$.

Which of the following aqueous solutions exhibits the lowest freezing point depression, assuming complete dissociation?

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