If the lowest expected temperature is about -10 degc what

Question

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?

(c) What is the boiling point of the coolant that contains 300 mL of ethylene glycol per liter of water?