Molarity is defined as the total number of moles of solute per litre of solution. Its change also depends on the physical characteristics of given solution like its volume, temperature, mass etc.

It is the number of miles of solute present in per liters of solution.
Molarity (M) is defined as the number of moles of solute per litre of solution.M= moles of solute/litre of solutionMolarity is a measurement of the moles in the total volume of the solution.

No. of moles of solute / volume of the solution (in litre)