Which option contains mass-based concentration terms?
Answer and explanation
Correct answer: Mass percentage and molality
Mass percentage uses mass of solute divided by mass of solution. Molality uses moles of solute divided by kilograms of solvent, so its denominator is also mass-based. Molarity and volume percentage use volume, while mole fraction is mole-based; ppm requires a stated basis and is not always mass-based.
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What is the correct answer to this question?
Mass percentage and molality
Why is this the correct answer?
Mass percentage uses mass of solute divided by mass of solution. Molality uses moles of solute divided by kilograms of solvent, so its denominator is also mass-based. Molarity and volume percentage use volume, while mole fraction is mole-based; ppm requires a stated basis and is not always mass-based.
Which subject and chapter does this question cover?
This is a Class 11 Chemistry question. Chapter: Chapter 01: Solutions.
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