The mole fraction of a solute in 2.0 molal aqueous solution is :
Show Hint
- 1.87
- 0.347
- 0.0347
- 0.00347
The Correct Option is C
Solution and Explanation
Step 1: Moles of water \(=\dfrac{1000}{18}=55.56\) mol.
Step 2: Mole fraction of solute \[x_{solute}=\dfrac{n_{solute}}{n_{solute}+n_{water}}=\dfrac{2.0}{2.0+55.56}=\dfrac{2.0}{57.56}=0.0347\]Answer: \(\boxed{0.0347}\), option (C).
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