Topical Questions
These questions are keyed to the major topics in the chapter. Usually a question that is answered at the back of this book is paired with a similar one that is not.
Some ethylene glycol, HOCH2CH2OH, was added to your car’s cooling system along with 5.0 kg water.
(a) If the freezing point of the solution is -15.0 °C, what mass (in grams) of the glycol must have been added?
(b) Calculate the boiling point of the coolant mixture.
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