Suppose you carry out a titration involving 2.25 molar KOH and an unknown concentration of HBr. To bring the reaction to its end point, you add 22.6 milliliters of KOH to 37.0 milliliters of HBr.
Now you know that you have a : ( 3.68M, 1.37M, 6.40M, 1.74M ) solution of HBr.