The freezing point of a solution containing `50 cm^(3)` of ethylene glycol in `50 g` of water is found to be `-34^(@)C`. Assuming ideal behaviour, Calculate the density of ethylene glycol `(K_(f)` for water = `1.86 K kg mol^(-1)`).

Explanation

`DeltaT = (K_(f) xx W_(f) xx 1000)/(Mw_(2) xx W_(1))`
`34 = 1.86xx(W_(2) xx 1000)/(62 xx50)`
`W_(2) = 56.66 g`
`(V) = (W_(2))/(d)`
`(50) = (56.66)/(d)`
` d = 1.13 g cm^(-3)`.