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Molar concentration or Molarity is a measure of the concentration of solute in the solution.
(eg) :1 mol of NaOH has 40g 
Molarity = moles of solute /liters of solution
             =0.375 mol / 0.225 L
             =1.67 mol / L
here, Moles = molarity * litre
        Molarity = moles / litre
       Litre = moles / molarity.
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