# Ethylene glycol is used as an antifreeze in a cold climate. Mass of ethylene glycol which should be added to 4 kg of water to prevent it from freezing

26 views

closed
Ethylene glycol is used as an antifreeze in a cold climate. Mass of ethylene glycol which should be added to 4 kg of water to prevent it from freezing at -6^(@)C will be (K_(f) for water = 1.86 Kkg mol^(-1), and molar mass of ethylene glycol =62 g mol^(-1))
A. 204.30g
B. 400.08g
C. 304.60g
D. 804.32g

by (90.9k points)
selected

Mass of glycol, W_(2)=(M_(2)xxW_(1)xxDeltaT_(f))/(1000xxK_(f))
=(62xx4000xx6)/(1000xx1.86)=800 g
Mole of CH_(3)OH = 5.2.