The mole fraction of solute in a solution is 0.25. Write it as mole percent.
Answer and explanation
Correct answer: 25 percent
Mole percent expresses the mole fraction on a scale of 100. The governing conversion is mole percent = mole fraction × 100. Hence, 0.25 × 100 = 25%. Therefore option A is correct. The value 0.25 is the original fraction, not its percentage form. In a binary solution, the remaining component would have mole fraction 0.75 and mole percent 75%, which explains why option D is a distractor.
Frequently asked questions
What is the correct answer to this question?
25 percent
Why is this the correct answer?
Mole percent expresses the mole fraction on a scale of 100. The governing conversion is mole percent = mole fraction × 100. Hence, 0.25 × 100 = 25%. Therefore option A is correct. The value 0.25 is the original fraction, not its percentage form. In a binary solution, the remaining component would have mole fraction 0.75 and mole percent 75%, which explains why option D is a distractor.
Which subject and chapter does this question cover?
This is a Class 11 Chemistry question. Chapter: Chapter 01: Solutions.
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