Question

State one disadvantage in using the molarity as the

unit of concentration.​

Answer 1

Answer:

Molality does not change with any change in the temperature.

Explanation:

Molarity is defined as the amount of solute present in 1 liter of the solution. As, volume is dependent on temperature and if there is any change in temperature, volume will also change and hence, the molarity of the solution will change.

Molality is defined as the amount of solute present in 1 kg of solvent. As, mass is not dependent on temperature. So, if there is any change in the temperature, the molality will remain the same.

As, molality remains the same with change in temperature and hence it has an advantage over molarity.

Answer 2

The biggest disadvantage of using molarity as the unit of concentration is that it changes with the temperature.

- Molarity is the no of moles of solute present in 1 liter of the solution.

- But the volume depends upon the temperature.

- Hence, whenever there is a change in the temperature will be a change in the volume.

- It will change the molarity.

- So, molarity is the last preference for the unit of concentration.