Ionization Constant of Weak Acid.docx - Penn State...

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Penn State BrandywineLab #4 Ionization ConstantDATA SHEETNAME _Maria Englert_PARTNER _Mikaylin Sutton____Titration of Standardized HCl with Standardized NaOHMolarity of NaOH__0.1182___MMolarity of HCl__0.0009763__MVolume HCl in Beaker ____10.00___mLInitial Buret Volume ___0.02____ mLFinal Buret Volume __11.80___ mLVolume of Base Delivered _11.82___mLTotal Number of Drops Delivered (from Pasco table) ____201____ dropsCorrection Factor for x-axis ___0.586____ mL/dropUse this correction factor in plotting the Excel plot of pH vs. volume (mL).Attach thisgraph to your write up.Page1of9
Penn State BrandywineLab #4 Ionization ConstantPart 1. Acidity Constants for Phosphoric AcidMolarity of NaOH_0.1182__MVolume of Acid in Beaker __10.00___mLInitial Buret Volume __0.01 + 22.3 = 22.31 (refill)+ 0.01+ 8.60_____mLFinal Buret Volume __30.92________ mLVolume of Base Delivered __30.92____mLTotal Number of Drops Delivered (from Pasco table) ___538___ dropsCorrection Factor for x-axis ____0.0575____ mL/dropUse this correction factor in plotting the Excel plot of pH vs. volume (mL).Attach thisgraph to your write up.Page2of9
Penn State BrandywineLab #4 Ionization ConstantUse the graph to obtain the following informationVolume of base added at first neutralization point=5mLpH at half first neutralization point=1.98pKa1=1.98Volume of base added at second neutralization point =15mLpH at half second neutralization point=6.86pKa2=6.86Volume of base added at third neutralization point

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Term
Fall
Professor
VANDERSLUYS,LORSCHMID,KYLEM
Tags
Penn State Brandywine, Moles of acid

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