The mole percent of solute in a solution is 35 percent. What is the mole fraction of solute?
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Answer and explanation
Correct answer: 0.35
Mole percent is the mole fraction multiplied by 100. Therefore, mole fraction = 35/100 = 0.35. A mole fraction is a ratio of moles, so it has no unit and must lie between 0 and 1. Thus, 3.5 and 35 cannot be valid mole fractions; 0.65 would represent the other component only in a binary solution.
Frequently asked questions
What is the correct answer to this question?
0.35
Why is this the correct answer?
Mole percent is the mole fraction multiplied by 100. Therefore, mole fraction = 35/100 = 0.35. A mole fraction is a ratio of moles, so it has no unit and must lie between 0 and 1. Thus, 3.5 and 35 cannot be valid mole fractions; 0.65 would represent the other component only in a binary solution.
Which subject and chapter does this question cover?
This is a Class 11 Chemistry question. Chapter: Some Basic Concepts of Chemistry. Topic: Mole concept and molar mass.
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