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A solution of glucose has been prepared ...

A solution of glucose has been prepared at 298K dissolving 7.2 g of glucose in 100 g of water. `k_f` water is `1.86Km^-1` and vapour pressure of water at 298K is 0.024 atm.
The amount of the sodium chloride that should be dissolved in the same amount of water to get the same freezing point will be

A

`-0.744^@C`

B

`-0.372^@C`

C

`-0.186^@C`

D

`-0.093^@C`

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