Antifreeze solutions are aqueous solutions of ethylene glycol, C2H6O2 (d = 1.12 g/mL). In Connecticut, cars are “winterized” by filling radiators with an antifreeze solution that will protect the engine for temperatures as low as –20°F.
(a) What is the minimum molality of antifreeze solution required?
(b) How many milliliters of ethylene glycol need to be added to 250 mL of water to prepare the solution called for in (a)?
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