C2H6 O2 40.0g He 4. An engine coolant is an aqueous solution of ethylene glycol, HOCH2CH2OH, 40.0 % by mass with a 100.0g Soluton density of 1.05 g/mL. Calculate the mole fraction of ethylene glycol in this solution? Assume 1.00 L of solution. mole fraction mol C2HO2 moles (2H602 + mal HeD %3D

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