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the boiling point of 0.15 molar aq...

the boiling point of 0.15 molar aqueous solution of an unknown solute is 373.23 K at 1 atm . The molal elevatio constant of water is ______ K kg `mol ^(-1)`

A

`0.53`

B

`0.88`

C

`1.8`

D

`5.3`

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