a) How many liters of ethylene glycol, CH2(OH)CH2(OH), should be added to a car radiator that contains a total of 6.5 L of coolant in order to protect the cooling system from freezing to a temperature of - 20 °C. The density of ethylene glycol is 1.11 g/mL. Assume that the volumes of water and ethylene glycol are additive.
b) What is the boiling point of the solution? Why would ethylene glycol be added to the cooling system of a car in Houston?