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 – 6ºC will be (Kf for water = 1.86 K kg mol–1.

Question

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 – 6ºC will be (Kf for water = 1.86 K kg mol–1. and molar mass of ethylene glycol = 62 g mol–1)

Prashant Kotian · Accepted Answer

Correct answer: A. According to the equation, 0 ( 6) 1.86 6 1.86 f f T K m m m Hence, mass of ethylene glycol required 6 4 62 800 1.86 g xx

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