Ethylene glycol oh-ch2-ch2-oh is used as an antifreeze its, Ask an Expert

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Ethylene glycol (OH-CH₂-CH₂-OH) is used as an antifreeze. (Its boiling point is 197 °C and freezing point is -17.4 °C.)

(a) Look up the density of ethylene glycol in the CRC Handbook or other tables and write a general formula for the freezing point of a mixture of X mL of ethylene glycol in 1.00 L of water for X in the range 0-100 mL.

(b) If the lowest expected temperature is about -10 °C, what is the minimum amount (in milliliters per liter of H₂O) of ethylene glycol do you need in your coolant?

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