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15.0 g of an unknown molecular material ...

`15.0 g` of an unknown molecular material was dissolved in `450 g` of water. The resulting solution was found to freeze at `-0.34 ^(@)C`. What is the the molar mass of this material. (`K_(f)` for water `= 1.86 K kg mol^(-1)`)

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To find the molar mass of the unknown molecular material, we can follow these steps: ### Step 1: Calculate the Depression in Freezing Point The depression in freezing point (ΔTf) can be calculated using the formula: \[ \Delta T_f = T_f^{\text{solvent}} - T_f^{\text{solution}} \] Given that the freezing point of the solvent (water) is \(0 \, ^\circ C\) and the freezing point of the solution is \(-0.34 \, ^\circ C\): ...
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