Student a weighs 0.747 g of khp on a laboratory balance. the khp was titrated with an unknown naoh solution and the concentration of the naoh determined to be 0.113 m. student b diluted 6 m hcl from the reagent shelf using a volumetric flask to obtain 0.6 m hcl. this solution was titrated with the same unknown naoh solution and found to be 0.104 m. which student should have the more accurate concentration for the unknown naoh? why?