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CBSE Class 12-science Answered

NaCl is 100 % ionized in 0.02 molal aqueous solution. hence the ratio of elevation in boiling point to molal elevation constant is : 
Asked by mdarsadazizh | 31 Aug, 2021, 01:02: PM
Expert Answer
Molality = 0.02 m 
Dissociation of NaCl is written as-
straight i equals 2

increment straight T subscript straight b space equals straight i cross times straight m cross times straight K subscript straight b
fraction numerator increment straight T subscript straight b over denominator straight K subscript straight b end fraction equals straight i cross times straight m equals 2 cross times 0.02 equals 0.04 space straight m
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