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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

80.32 g

B

204.30 g

C

400.00 g

D

304.60 g

Text Solution

Verified by Experts

The correct Answer is:
A
`Delta T_(f)=iK_(f)m, Delta T_(f)=6^(@)C, i=1`
`6=1xx1.86xx(w)/(62xx4)rArr w=804.32 g`
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