What is the mole fraction of solute in a solution containing 0.25 mole solute and 0.75 mole solvent?
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Answer and explanation
Correct answer: 0.25
The mole fraction of a component equals its number of moles divided by the total number of moles in the solution. The total is 0.25 + 0.75 = 1.00 mol. Hence, xsolute = 0.25 ÷ 1.00 = 0.25, so option A is correct. Option B is the solvent fraction, option C is the sum of both fractions, and option D has no valid basis here.
Frequently asked questions
What is the correct answer to this question?
0.25
Why is this the correct answer?
The mole fraction of a component equals its number of moles divided by the total number of moles in the solution. The total is 0.25 + 0.75 = 1.00 mol. Hence, xsolute = 0.25 ÷ 1.00 = 0.25, so option A is correct. Option B is the solvent fraction, option C is the sum of both fractions, and option D has no valid basis here.
Which subject and chapter does this question cover?
This is a Class 11 Chemistry question. Chapter: Chapter 01: Solutions.
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