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An aqueous solution of a weak monobasic ...

An aqueous solution of a weak monobasic acid containing `0.1g`in `21.7`g of water freezes at`272.813K`.If the value of `K_(f)`for water is `1.86K//m`,what is the molecular mass of the monobasic acid

A

50g/mole

B

46g/mole

C

55g/mole

D

60g/mole

Text Solution

Verified by Experts

The correct Answer is:
D
`m=(K_(f)xx wxx1000)/(Delta T_(f)xx W)=60` g/mole.
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