What volume of antifreeze (C2H4(OH)2 MW= 62.068 g/mol and density of 1.1132 g/ml) and what volume of water must be mixed together in order to have a total volume of solution that is 7.00 L and which will not freeze until the temperature drops below -10.0 C? Pure water freezes at 0C and has a density 1.00 g/ml and Kf of 1.86 C/m.