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 $- 6^{\circ}C$ will be ($K_{f}for\ water = 1.86\ K\ kg\ mol^{- 1}.$ and molar mass of ethylene glycol = $62\ g\ mol^{- 1}$)

Question

Dr. Abubacker · Accepted Answer

(a)
$\bigtriangleup T_{f} = \frac{1000\ K_{f}w_{1}\ (i)}{m_{1}w_{2}}$
$	herefore$ 6=$\frac{1000 	imes 1.86 	imes w_{1} 	imes 1}{62 	imes 4000}$
$\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ w_{1} = 800\ g$

Q. 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 $- 6^{\circ}C$ will be ($K_{f}for\ water = 1.86\ K\ kg\ mol^{- 1}.$ and molar mass of ethylene glycol = $62\ g\ mol^{- 1}$)

Explanation

Reviewed by Dr. Abubacker

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