In which concentration term is the mass of solvent used in the denominator?
Answer and explanation
Correct answer: Molality
Molality is defined as the moles of solute per kilogram of solvent, so the mass of solvent appears in its denominator: m = moles of solute/kg of solvent. Hence option A is correct. Molarity uses the volume of solution, volume percentage uses volume quantities, and mole fraction uses the total number of moles rather than a solvent mass.
Frequently asked questions
What is the correct answer to this question?
Molality
Why is this the correct answer?
Molality is defined as the moles of solute per kilogram of solvent, so the mass of solvent appears in its denominator: m = moles of solute/kg of solvent. Hence option A is correct. Molarity uses the volume of solution, volume percentage uses volume quantities, and mole fraction uses the total number of moles rather than a solvent mass.
Which subject and chapter does this question cover?
This is a Class 11 Chemistry question. Chapter: Chapter 01: Solutions.
