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(a) Define the following terms : (i) M...

(a) Define the following terms :
(i) Mole fraction
(ii) Ideal solution
(b) `15.0`g of an unknown molecular material is dissolved in 450g of water . The resulting solution freezes at `-0.34^(@)C` . What is the molar mass of the material ?
`(K_(f)` for water = `1.86` K kg `mol^(-1))`

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`"182.35 g mol"^(-1)`
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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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