If there are 1.5 moles solute and 3.5 moles solvent, what is the mole fraction of solute?
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Answer and explanation
Correct answer: 0.3
Mole fraction is defined as the moles of one component divided by the total moles of all components. Total moles = 1.5 + 3.5 = 5.0 mol. Hence, the solute mole fraction is 1.5 ÷ 5.0 = 0.30. Option A is correct. The value 0.70 is the solvent fraction, while 1.5 is an amount in moles, not a fraction.
Frequently asked questions
What is the correct answer to this question?
0.3
Why is this the correct answer?
Mole fraction is defined as the moles of one component divided by the total moles of all components. Total moles = 1.5 + 3.5 = 5.0 mol. Hence, the solute mole fraction is 1.5 ÷ 5.0 = 0.30. Option A is correct. The value 0.70 is the solvent fraction, while 1.5 is an amount in moles, not a fraction.
Which subject and chapter does this question cover?
This is a Class 11 Chemistry question. Chapter: Chapter 01: Solutions.
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