A very dilute solution is prepared by dissolving 'x1' mole of solute in 'x2' mole of a solvent. The mole fraction of solute is approximately equal to_________________?
Correct answer: A. x1/x2
- A. x1/x2
- B. x2/x1
- C. 1 - (x1/x2)
- D. 1/x2
Explanation
The exact mole fraction is x1/(x1 + x2). Since the solution is very dilute, x1 is negligible compared with x2, giving approximately x1/x2.
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