[CHOOHO]

Ethylene glycol, HOCH2CH2OH, is a nonvolatile liquid used as an antifreeze for automotive cooling systems. A solution is made by dissolving 250. grams of ethylene glycol in 650.0 grams of water
 a. Calculate the mass % of ethylene glycol in water
 b. Calculate the molality of ethylene glycol in the solution
 c. Calculate the mole fraction of water in the solution
 d. Calculate the theoretical freezing point of the solution. The freezing point constant 1.86 C/m
 e. Calculate the vapor pressure of the solution at 90C. The vapor pressure of water at 90C is 525.8 torr.
 f. What quantity is is needed to calculate the Molarity of ethylene glycol in solution? Show how you would do the calculation if you had this missing quantity.

I already wrote the unbalanced and tried to write the balanced equation.

[Borek]

There is no reaction here, and all points are simple plug and chug questions. Just check definitions.

IMHO e can't be done without additional data. That is, they call ethylene glycol non volatile in the first line, but if it is non volatile, why does it stink?