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  • The amount of ice separated on cooling a solution containing 60 g of ethylene glycol in 300 g water to <img alt="-9.8{ }^{\circ} \mathrm{C}" src="https://entrancecorner.oncodecogs.com/gif.latex?-9.

The amount of ice separated on cooling a solution containing 60 g of ethylene glycol in 300 g water to -9.8{ }^{\circ} \mathrm{C} is \mathrm{{K_ f=1.86 K ~molality}}

Option: 1

128.4 g


Option: 2

132 g


Option: 3

192 g


Option: 4

116.4 g


Answers (1)

best_answer


\mathrm{ \Delta T=\frac{1000 \times 1.86 \times 60}{62 \times w} }

\mathrm{ 9.8=\frac{1000 \times 1.86 \times 60}{62 \times w}}

\mathrm{ 9.8=\frac{1000 \times 1.86 \times 60}{62 \times 9.8}}

\mathrm{ w = 183.6}

\mathrm{Ice {~seperated} = 300 -183.6}

\mathrm{=116.4}

Posted by

Irshad Anwar

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