If the final volume is measured directly while preparing a solution, which volume should be used for calculating molarity?
Answer and explanation
Correct answer: Measured final volume of solution
Molarity is defined as moles of solute per litre of solution. Consequently, the denominator must be the final volume occupied by the complete solution after dissolving and mixing. Solvent volume alone or the nominal capacity of a container is not necessarily the solution volume. A directly measured final volume is therefore the correct quantity.
Frequently asked questions
What is the correct answer to this question?
Measured final volume of solution
Why is this the correct answer?
Molarity is defined as moles of solute per litre of solution. Consequently, the denominator must be the final volume occupied by the complete solution after dissolving and mixing. Solvent volume alone or the nominal capacity of a container is not necessarily the solution volume. A directly measured final volume is therefore the correct quantity.
Which subject and chapter does this question cover?
This is a Class 11 Chemistry question. Chapter: Chapter 01: Solutions.
