When an HCl solution is titrated by an NaOH solution, how do you know when you have added just enough NaOH to react with (titrate) all of the HCl present?
Note: this is a standard acid-base titration using phenolphthalein as the indicator.
Select one:
When you have added 12.75 mL of NaOH
When a light orange color change occurs
When a light pink color change occurs
When the buret gets very hot
When the volume of the original HCl solution has doubled