If there are 0.2 mole solute and 0.8 mole solvent, what is the mole fraction of solvent?
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Answer and explanation
Correct answer: 0.8
The governing concept is mole fraction: the mole fraction of a component equals its moles divided by the total moles of all components. Total moles = 0.2 + 0.8 = 1.0 mol. Hence, mole fraction of solvent = 0.8 / 1.0 = 0.8, making option A correct. Option B is the solute fraction, while 1.0 is the sum of both mole fractions.
Frequently asked questions
What is the correct answer to this question?
0.8
Why is this the correct answer?
The governing concept is mole fraction: the mole fraction of a component equals its moles divided by the total moles of all components. Total moles = 0.2 + 0.8 = 1.0 mol. Hence, mole fraction of solvent = 0.8 / 1.0 = 0.8, making option A correct. Option B is the solute fraction, while 1.0 is the sum of both mole fractions.
Which subject and chapter does this question cover?
This is a Class 11 Chemistry question. Chapter: Chapter 01: Solutions.
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