A solution is made by adding $28\mathrm{.}7mL$ of concentrated potassium hydroxide $(34\mathrm{.}5wt\%,$ density $1\mathrm{.}46\frac{g}{m}L)$ to some water in a volumetric flask, and then adding water to the mark to make exactly $500mL$ of solution. Calculate the concentration of this solution in molarity.