What volume of ethanol (density = 0.7893 g/cm3) should be added to 450 mL of water in order to have a solution that freezes at -15.0°C? [For water, Kf = 1.86°C/m.]
(i) 371 mL
(ii) 470 mL
(iii) 212 mL
(iv) 132 mL
(v) 167 mL
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