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Ethylene glycol is used as an antifreeze...

Ethylene glycol is used as an antifreeze in a cold climate. Mass of ethylene glycol which should be added to 4 kg of water to prevent it from freezing at `-6^(@)C` will be `(K_(f)` for water `= 1.86 Kkg mol^(-1)`, and molar mass of ethylene glycol `=62 g mol^(-1))`

A

204.30g

B

400.00 g

C

304.60 g

D

804.32 g

Text Solution

Verified by Experts

`DeltaT_(f)=(1000K_(f)w_(2))/(w_(1)M_(2))" "therefore" "6=(1000xx1.86xxw_(2))/(4000xx62) or w_(2)=800g`
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