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Mole fraction of solute in a 2.0 molal a...

Mole fraction of solute in a 2.0 molal aqueous solution is :

A

1.77

B

1.87

C

0.347

D

0.0347

Text Solution

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The correct Answer is:
D
In 2.0 molal aqueous solution
No. of moles of solute = 2 mol
No. of moles water `= ((1000g))/(("18 g mol"^(-1)))=55.55` mol
Mole fraction of solute `= (("2 mol"))/(("2 mol")+("55.55 mol"))=0.347`.
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