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The amount of ice that will separate out...

The amount of ice that will separate out on cooling a solution containing 50 g ethylene glycol in 200 g water to `-9.3^(@)C` is : (`K'_(f) = 1.86 K "molality"^(-1)`)

A

38.71 g

B

38.71 mg

C

42 g

D

42 mg

Text Solution

Verified by Experts

The correct Answer is:
A

`Delta T=(1000xx K_(f)xx w)/(W xx M)` or `9.3=(1000xx1.86xx50)/(62xx W)`
`therefore W = 161.29 g`
`therefore` Ice separated `= 200-161.29=38.71g`
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