1.

5% sucrose solution is isotonic with 1% 'X' solution. What will be the molecular weight of 'X' ?

Answer»

343 gram/mole
180 gram/mole
68.4 gram/mole
171 gram/mole

SOLUTION :For the 5 % solution `(5)/(M_(1))` and 1% solution `= (1)/(M_(2))`
`therefore (5)/(342)=(1)/(M_(2))`
`therefore M_(2)=68.4` gram/mole.


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