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For a solvent K(b)=5 kg mol^(-1) using t...

For a solvent `K_(b)=5` kg `mol^(-1)` using this solvent, the solution records the elevation of boiling point of `0.5 ^(@)C` The molality of the solution is

A

0.25

B

0.1

C

10

D

unpredictable.

Text Solution

Verified by Experts

The correct Answer is:
B
`Delta T_(b) = K_(b) xx m `
`:. m=(Delta T_(b))/K_(b)=0.5/5 = 0.1`
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