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Difference between Molarity and Molality Video Lecture | Chemistry Class 11 - NEET

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FAQs on Difference between Molarity and Molality Video Lecture - Chemistry Class 11 - NEET

1. What is the difference between Molarity and Molality?
Ans. Molarity is the concentration of a solution expressed in moles of solute per liter of solution, while molality is the concentration of a solution expressed in moles of solute per kilogram of solvent.
2. How do you calculate Molarity?
Ans. Molarity is calculated by dividing the number of moles of solute by the volume of the solution in liters. The formula for molarity is Molarity (M) = moles of solute / liters of solution.
3. How do you calculate Molality?
Ans. Molality is calculated by dividing the number of moles of solute by the mass of the solvent in kilograms. The formula for molality is Molality (m) = moles of solute / kilograms of solvent.
4. When is it more appropriate to use Molarity over Molality?
Ans. Molarity is more appropriate when dealing with reactions that involve volume measurements, such as titrations. Molality is more appropriate when temperature changes are involved, as it does not depend on the temperature of the solution.
5. Can Molarity and Molality have the same numerical value for a solution?
Ans. No, Molarity and Molality cannot have the same numerical value for a solution since they are calculated using different units of measurement (liters for Molarity and kilograms for Molality).
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