Calculations for standardization of sodium hyroxide Mass of KHC₂H404 (9) Moles of KHC₂H₂O4 used (mol) Moles of NaOH reacted (mol) Final buret reading of NaOH (mL) Initial buret reading of NaOH (mL) Volume of NaOH solution used (ml) Volume of NaOH solution used (L) Concentration of NaOH (M) Trial 1 0.424 .0021 40.89 19.29 21.60 0216 Trial 2 0.439 .0021 22.09 0.95 21.14 02114 Trial 3 0.449 0022 49.10 22.09 27.01 02701

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