# Problem: Use the van't Hoff factors in the table below to calculate each colligative property:Van't Hoff Factors at 0.05 m Concentration in Aqueous SolutionSolute/Expected/MeasuredNonelectrolyte11NaCl21.9MgSO421.3MgCl232.7K2SO432.6FeCl343.4Calculate the melting point of a 0.111 m iron(III) chloride solution.

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###### FREE Expert Solution

The change in freezing point is also related to the molality of the solution:

$\overline{){{\mathbf{\Delta T}}}_{{\mathbf{f}}}{\mathbf{=}}{\mathbf{i}}{\mathbf{·}}{\mathbf{m}}{\mathbf{·}}{{\mathbf{K}}}_{{\mathbf{f}}}}$

Step 1: van’t Hoff factor (i)

iron (III) chloride → FeCl3

FeCl3 → Fe3+ + 3 Cl
i = 4

86% (75 ratings)
###### Problem Details
Use the van't Hoff factors in the table below to calculate each colligative property:
Van't Hoff Factors at 0.05 m Concentration in Aqueous Solution
 Solute /Expected /Measured Nonelectrolyte 1 1 NaCl 2 1.9 MgSO4 2 1.3 MgCl2 3 2.7 K2SO4 3 2.6 FeCl3 4 3.4

Calculate the melting point of a 0.111 m iron(III) chloride solution.

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Freezing Point Depression concept. If you need more Freezing Point Depression practice, you can also practice Freezing Point Depression practice problems.

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Our tutors rated the difficulty ofUse the van't Hoff factors in the table below to calculate e...as medium difficulty.

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Based on our data, we think this problem is relevant for Professor Kesling's class at CAMPBELL.