[Tutorial: Titration stoichiometry] This question will walk you through the steps of calculating the volume of titrant required to reach the endpoint based on the volume and concentration of analyte. Consider the standardization of NaOH by titration with C. H:0, according to the following chemical reaction: 3 NaOH(aq) + C6H3O-(aq) = Na3C6H5O-(aq) + 3 H2O(1) Step 3: Calculate the volume of titrant required to reach the endpoint. Calculate the volume in mL of a 0.200 M NaOH solution needed to neutralize 345 mL of 0.0333 M C6H:O standard solution.​