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45g of ethylene glycol (C2H6O2) is mixed...

45g of ethylene glycol (`C_2H_6O_2`) is mixed with 600g of water. Calculate
The freezing point depression

Text Solution

Verified by Experts

`:. W_(B) = 45 g`
Molar Mass of ethylene glycol `(C_(2) H_(6) O_(2)) M_(B) = 62 g mol^(-1)`
`W_(A) = 600 g = 0.6 kg`
`K_(f) = 1. 86 K kg mol^(-1)`
`Delta T_(f) = K_(f) xx (W_(B))/(M_(B)) xx (1)/(W_(B) (kg))`
`= (1.86 K kg mol^(-1) xx 45 g)/( 62 g mol ^(-1) xx 0.6 kg)`
`Delta _(f) = 2.25 K`
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