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Asked Dec 15, 2019
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11. A solution of 2.11 g of a nonelectrolyte dissolved in 63.6 g of chloroform
is found to freeze at -64.6 °C. What is the molar mass of this compound?
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11. A solution of 2.11 g of a nonelectrolyte dissolved in 63.6 g of chloroform is found to freeze at -64.6 °C. What is the molar mass of this compound?

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Expert Answer

Step 1

The equation is :

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ДТ ixkхmоlality Aт dергеssion in freezing point AT, k,-depression in freezing point oonstant Number of particles after dissociation Initial mumber of paticles i=

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Step 2

For non-electrolytes, i=1.

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пшber of moles ofthe solute mass of the solvent in kg molality =

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Step 3

Then,

...
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-T, AT,=T, F(solvent) fsolution) AT;FTKaloroform)(solution) Aт, —-63.50с(64.6°C)-1.1°с -T,

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