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Grade: 12
        which is better for express concentration molarity or molality
3 years ago

Answers : (4)

Aarti Gupta
askIITians Faculty
300 Points
							Molality is considered better for expressing the concentration as compared to molarity because the molarity changes with temperature because of expansion or contraction of the liquid with temperature.But molality does not changes with temperature because the mass of the solvent does not change with change in temperature.
						
3 years ago
Avinash
askIITians Faculty
1246 Points
							Molarity and molality are both measures of concentration of solutions. One is the ratio of moles to volume of the solution and the other isthe ratio of molesto the mass of the solution.
Molality is better than the molarity concentration in chemisrtry pratical calculation becauseConcentrations in molality (moles of solute per kilograms of solvent) are independent of temperature and pressure whereas concentrations in molarity (moles of solute per total volume of solution in liters) are not.
3 years ago
Avinash
askIITians Faculty
1246 Points
							Molality is independent of temperature
						
3 years ago
Prajwal Kavad
603 Points
							
molality is better bcoz it doesnt change with temperature
3 years ago
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