Which statement about concentration units is most correct?
Answer and explanation
Correct answer: Mole fraction is a ratio so it has no unit
Mole fraction is defined as the moles of one component divided by the total moles of all components. Both quantities have the same unit, so their ratio is dimensionless and has no unit. Molarity uses solution volume, molality uses solvent mass, and mass percent uses masses, not necessarily moles.
Frequently asked questions
What is the correct answer to this question?
Mole fraction is a ratio so it has no unit
Why is this the correct answer?
Mole fraction is defined as the moles of one component divided by the total moles of all components. Both quantities have the same unit, so their ratio is dimensionless and has no unit. Molarity uses solution volume, molality uses solvent mass, and mass percent uses masses, not necessarily moles.
Which subject and chapter does this question cover?
This is a Class 11 Chemistry question. Chapter: Chapter 01: Solutions.
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