Q. The mole fraction of the solute in one molal aqueous solution is :
A) 0.054
B) 0.042
C) 0.018
D) 0.009
Explanation
[Solution from source] One molal means 1 mol solute in 1000 g water = 55.5 mol water. x(solute) = 1/(1 + 55.5) ≈ 0.0177 ≈ 0.018. Answer (3).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.