If the mole fraction of a component is 0.25, what does it mean?
Answer and explanation
Correct answer: One-fourth of total moles belong to that component
The governing definition is mole fraction xᵢ = nᵢ/n(total), where nᵢ is the amount of the selected component and n(total) is the sum of moles of all components. If xᵢ = 0.25, then nᵢ is 25% of the total amount, or one-fourth of all moles. Thus option A is correct. Mole fraction alone does not give total mass, volume, or grams because those depend on molar masses and physical conditions.
Frequently asked questions
What is the correct answer to this question?
One-fourth of total moles belong to that component
Why is this the correct answer?
The governing definition is mole fraction xᵢ = nᵢ/n(total), where nᵢ is the amount of the selected component and n(total) is the sum of moles of all components. If xᵢ = 0.25, then nᵢ is 25% of the total amount, or one-fourth of all moles. Thus option A is correct. Mole fraction alone does not give total mass, volume, or grams because those depend on molar masses and physical conditions.
Which subject and chapter does this question cover?
This is a Class 11 Chemistry question. Chapter: Chapter 01: Solutions.
