A 0.300 M solution of HCl is prepared by adding some 1.50 M HCl to a 500 mL volumetric flask and dil — Aqueous Chemistry Chemistry Question

A 0.300 M solution of HCl is prepared by adding some 1.50 M HCl to a 500 mL volumetric flask and diluting to the mark with deionized water. What volume of 1.50 M HCl must be added?