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Define the following terms : a. Mole f...

Define the following terms `:`
`a.` Mole fraction `b.` Molality
`c.` Molarity `d. Mass percentage.

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Mole Fraction|Molarity|Molality|OMR|Summary

(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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