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Question

The freezing point of a solution containing 28.335 cm3 of ethylene glycol in 50 g water is found to be 34 C. Assuming ideal behaviour, calculate the density of ethylene glycol. Kf for water 1.86 K kg mol1.___

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Solution

Wethylene glycol=M2×Δ Tf×Wwater1000×kf
=62×34×501000×1.86=56.67g
d=WV=56.6728.335=2

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