The purpose of this lab was to measure the exact mass of a primary standard, to find the precise number of moles of potassium hydrogen phthalate (KHP) included to the reaction, the molarity of NaOH at the equivalence point, the molarity of an aqueous solution containing NaOH, as well as how much volume was needed to get to the equivalence point specified by the end point. The first step in this experiment was to prepare a solution of NaOH with an unknown molar concentration. Then, determine the concentration of the NaOH by titration, using KHP which has a known concentration and is considered a primary standard. during this experiment, Phenolphthalein was found to be the best indicator for the titration of vinegar with NaOH, due to it having
