12. An automobile antifreeze mixture is made by mixing equal volumes of ethylene glycol (d =...

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12. An automobile antifreeze mixture is made by mixing equal volumes of ethylene glycol (d = 1.114 g/mL; Mr = 62.07 g/mol) and water (d=1.00 g/mL) at 20 °C. The density of the mixture is 1.070 g/mL. Express the concentration of ethylene glycol as: (a) Volume percent (b) Mass percent (c) Molarity (d) Molality (e) Mole fraction 12. An automobile antifreeze mixture is made by mixing equal volumes of ethylene glycol (d = 1.114 g/mL; Mr = 62.07 g/mol) and water (d=1.00 g/mL) at 20 °C. The density of the mixture is 1.070 g/mL. Express the concentration of ethylene glycol as: (a) Volume percent (b) Mass percent (c) Molarity (d) Molality (e) Mole fraction