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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 reusulting 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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The correct Answer is:
182.35

Refer Solution to Practice Problem 60 ( page 71).
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