1.

K_(f) for water is 1.86 K kg mol^(-1). If your automobile radiator holds 1.0 kg of water, how may grams of ethylene glycol (C_(2)H_(6)O_(2)) must you add to get the freezing point of the solution lowered to - 2.8^(@)C

Answer»

72 g
93 g
39 g
27 g

Solution :`Delta T_(F)= i XX k_(f)xx m`
`2.8=1xx1.86xx(x)/(62xx1)`
`x=(2.8xx62)/(1.86)=93 GM`


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