KHP(aq) + NaOH(aq) -> H2O (l) + KNaP(aq) 1. Once the equivalence point is reached, any NaOH that is added after that reacts with the indicator giving the pink color. If too much NaOH is added the pink color is too dark. How would this affect the value of the calculated NaOH molarity?   2. Why might it be a good idea to rinse down the sides of the flask with a squirt of deionized water from time to time during the titration?   3. When a little NaOH is added to the KPH solution, why is a pink color initially seen, but then it disappears?

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Acid Base Titration

An acid-base titration is the method of quantitative analysis for determining the concentration of an acid and base by exactly neutralizing it with a standard solution of base or acid having known concentration.