A student added solid K2O to a 500 ml volumetric flask resulting in the 500 mL of KOH solution which was then filled with water. 10 mL of the solution was then transferred to another volumetric flask and diluted to 300 mL and where the pH of the diluted solution is 14.12. Determine the concentration of the hydroxide ion in the diluted solution? Determine the mass of K2O was added to the first flask?