Which concentration term is not expressed as a percentage?
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Answer and explanation
Correct answer: Molality
Molality is defined as moles of solute per kilogram of solvent, so its unit is mol kg⁻¹ and it is not a percentage term. Mass percentage, volume percentage, and mass-volume percentage all express a quantity on a 100-unit basis and therefore explicitly use percent.
Frequently asked questions
What is the correct answer to this question?
Molality
Why is this the correct answer?
Molality is defined as moles of solute per kilogram of solvent, so its unit is mol kg⁻¹ and it is not a percentage term. Mass percentage, volume percentage, and mass-volume percentage all express a quantity on a 100-unit basis and therefore explicitly use percent.
Which subject and chapter does this question cover?
This is a Class 11 Chemistry question. Chapter: Chapter 01: Solutions.
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