1.

Calculate the freezing point of a solution that contains 30 g urea in 200 g water. Urea is a non-volatile, nonelectrolytic solid. K_(f) for H_(2)O=1.86^(@)C//m

Answer»

`4.65^(@)C`
`-4.65^(@)C`
`-0.744^(@)C`
`+0.744^(@)C`

Solution :`Delta T_(F)=K_(f)xxm=1.86xx(30)/(60)XX(1000)/(200)=4.65^(@)C`.


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