1.

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

Answer»

50g/mole
46g/mole
55g/mole
60g/mole

Solution :`m=(K_(f)XX wxx1000)/(DELTA T_(f)xx W)=60` g/mole.


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