Mass of ethylene glycol (antifreeze) to be added to 18.6 kg of water to protect the freezing point a — JEE Mains Chemistry Past Papers Chemistry Question
Question
Mass of ethylene glycol (antifreeze) to be added to 18.6 kg of water to protect the freezing point at –24°C is________ kg (Molar mass in g mol–1 for ethylene glycol 62, Kf of water = 1.86 K kg mol–1)
Answer: .
💡 Solution & Explanation
Tf = iKf × molality W (1) 1.86 62 18.6 W = 14880 gm = 14.880 kg
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