In preparing the buret for titration, the final rinse is with the NaOH titration rather than with deionized water. Explain In preparing the buret for titration, the final rinse is with the NaOH titration rather than with deionized water. Explain Solution When the buret is prepared for titration, the final rinse is with the NaOH titration rather than with deionized water. This is because whenever you clean buret with soap and water or rinse it with deionized water, the water residues always left in the buret which may change the values or readings while titrating and may cause the results to be inaccurate.So, rinsing with NaOH after cleaning with water is necessary as it reduces the amount of water inside the buret and increases the amount of NaOH solution inside the buret. .