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The addition of 3g of a substance to 100g of CCl4(density 1.58g/mL) raises the boiling point of CCl4 by 0.6 degrees. Calculate the freezing-point depression (Kf = 31.8K-kg/mol), the relative vapor-pressure lowering, the osmotic pressure of the solution at 25 C, and the molecular weight of the substance.

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