The flask shown here contains 10.0 mL of HCl and a few drops of phenolphthalein indicator. The buret contains 0.100 M NaOHH mL What volume of NaOH is needed to reach the end point of the titration? 15 20 E 25 30 35 40 Number 26 mL NaOH What was the initial concentration of HCI? Click to begin Number 0.100 M HCI