What would be the freezing point of aqueous solution containing 17 g of C2H5OH in 1000 g of water. KfH2O=1.86 K m-1.

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-0.69°C

-0.34°C

0.0°C

0.34°C

answer is A.

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Detailed Solution

∆Tf=1000×1.86×1746×1000=0.69°C Tf=0-0.69=-0.69°C

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