Which concentration term involves formula units per litre of solution?
Answer and explanation
Correct answer: Formality
Formality is the concentration expressed as gram-formula units of a solute per litre of solution. It is especially useful for ionic compounds where the solute may dissociate in solution, so counting undissociated molecules can be inappropriate. Molality uses kilograms of solvent, mole fraction uses total moles, and mass percentage uses masses.
Frequently asked questions
What is the correct answer to this question?
Formality
Why is this the correct answer?
Formality is the concentration expressed as gram-formula units of a solute per litre of solution. It is especially useful for ionic compounds where the solute may dissociate in solution, so counting undissociated molecules can be inappropriate. Molality uses kilograms of solvent, mole fraction uses total moles, and mass percentage uses masses.
Which subject and chapter does this question cover?
This is a Class 11 Chemistry question. Chapter: Chapter 01: Solutions.
