How much ethylene glycol(C2H6O2, the major componenet of antifreeze) must be added to 1L of water to keep from it freezing at-15 F? Kf=1.86 c/m. show your work.

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Irving HeathcoteLv2

14 Aug 2019

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A common antifreeze for car radiators is ethylene glycol, CH2(OH)CH2(OH). How many liters of ethylene glycol would you add to 5.6 L of water in the radiator if the coldest day in winter is -12Â°C? How much will the amount of ethylene glycol you calculated elevate the boiling point of the fluid in the radiator? Kf for water is 1.86 mol-1 kg and Kb is 0.51 K mol-1 kg. Assume a water density of 1 kg/L, a density of ethylene glycol of 1.11 g cm-3 and ethylene glycol boiling point of 470 K.

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