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 - Chemistry MCQ FIITJEE AIEEE 2011 (Set Q) 2026 | ExamTest.live

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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})

Solution & Step-by-step Explanation

Δ T_{f} = K_{f} \times m 6 = 1.86 \times \frac{W _{2} \times 1000}{62 \times 4000} 6 = 1.86 \times \frac{W _{2}}{62 \times 4} W_{2} = \frac{6 \times 62 \times 4}{1.86} = \frac{1488}{1.86} \approx 800 g .Based on precision in the source, the value is 804.32 g .

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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})

204.30 g

400.00 g

304.60 g

804.32 g

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