Which concentration term always has a value between 0 and 1, including the limiting values?
Answer and explanation
Correct answer: Mole fraction
The mole fraction of a component is the moles of that component divided by the total moles of all components: xᵢ = nᵢ/Σn. Since a component’s amount cannot be negative or exceed the total amount, its mole fraction lies from 0 to 1, inclusive. Molarity, molality, and percentage values do not necessarily follow this 0–1 range. Thus, option A is correct.
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What is the correct answer to this question?
Mole fraction
Why is this the correct answer?
The mole fraction of a component is the moles of that component divided by the total moles of all components: xᵢ = nᵢ/Σn. Since a component’s amount cannot be negative or exceed the total amount, its mole fraction lies from 0 to 1, inclusive. Molarity, molality, and percentage values do not necessarily follow this 0–1 range. Thus, option A is correct.
Which subject and chapter does this question cover?
This is a Class 11 Chemistry question. Chapter: Chapter 01: Solutions.
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