Question

Explain molality and molarity.

Answer 1

Molality is the number of moles of the solute in 1 litre of the solution

It is represented by M

M = No of moles of solute / Volume of the solution in litres

Molarity is the number of moles in a solute present in 1 kg of solvent

It is represented by m

m = No of moles of solute / Mass of the solvent in kg

Answer 2

Answer:

• Molality is defined as the total moles of a solute contained in a kilogram of a solvent.

• Molarity is the ratio of a solvent's moles to a solution's total litres. Both the solute and the solvent are part of the solution.

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