Which option has all relations correct?
Answer and explanation
Correct answer: Molarity = moles/litre solution; molality = moles/kg solvent
Molarity is moles of solute per litre of solution, whereas molality is moles of solute per kilogram of solvent. These denominators are the key distinction. Mole fraction is a ratio of moles, mass percent uses masses, and volume percent uses volumes; therefore the mixed definitions in the other options are incorrect.
Frequently asked questions
What is the correct answer to this question?
Molarity = moles/litre solution; molality = moles/kg solvent
Why is this the correct answer?
Molarity is moles of solute per litre of solution, whereas molality is moles of solute per kilogram of solvent. These denominators are the key distinction. Mole fraction is a ratio of moles, mass percent uses masses, and volume percent uses volumes; therefore the mixed definitions in the other options are incorrect.
Which subject and chapter does this question cover?
This is a Class 11 Chemistry question. Chapter: Some Basic Concepts of Chemistry. Topic: Mole concept and molar mass.
